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- An equation is a statement that two expressions are equal. For example, the expression + is equal to the expression + (because they both equal ), so we can write the following equation: + = + All equations have an equal sign (= ). The = sign is not an operator like addition (+ ) or subtraction (− ) symbols.
www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equations-and-inequalities/cc-6th-intro-equations/a/introduction-to-equations
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How do you write an equation if two expressions are equal?
What is an equation in math?
Are all equations true equations?
How to write a word equation. Word equations are a quick and simple way of summarising chemical reactions. Look at the description of this reaction: “Calcium carbonate powder reacted with a...
- Equations - BBC Bitesize
Part of. What are equations? Equations are made up of two...
- Forming and simplifying equations - Equations and formulae ...
Learn how to form, solve, and rearrange equations using the...
- Equations - BBC Bitesize
Part of. What are equations? Equations are made up of two expressions on either side of an equals sign, such as: \ (x + 1 = 2\) To solve an equation, you aim to find the value of the...
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- Your Turn!
A mathematical equation, also known as a statement, shows that two separate expressions are equal. The two expressions are usually connected by the "equal-to" (=) sign. You can find the expressions in a mathematical statement by looking at the left-hand side and the right-hand side of the equation, using the = sign as the point of reference. Exampl...
The most popular equations are algebraic equations, in which letters are used as variables. Variables are placeholders that can assume any value. They can also be referred to as unknowns. You must solve for the correct value of the variable to make the equation true. Let's look at an example. 4x + 2x = 12 The letter x is the variable. You must find...
The beauty of mathematics is that it provides a logical and sequential means of solving problems. Sometimes, the word problems that we encounter can be solved if they are represented in mathematical notation. A great way to do this by writing the problems as algebraic equations. Once the problem is represented as an algebraic equation, it can then ...
The key to writing your own equation in algebra is learning how to solve them. Like learning any language, this means you have to practice consistently. Try turning word problems into equations first. Then go ahead and make your own equation from scratch to solve. You may find that it ends up being great fun. See the 2 Commentsbelow.
Writing linear equations in all forms. Sal finds the equation of a line that passes through (-3,6) and (6,0) in point-slope, slope-intercept, and standard form. Created by Sal Khan and Monterey Institute for Technology and Education.
- 8 min
- Sal Khan,Monterey Institute for Technology and Education
- You wouldnt have to. It would really just depend on how your professor would like the form to be.
- Well, say the equation is 8x -2y =24. To graph, you must plug in 0 for either x or y to get the y- or x-intercept. So in the equation that I said,...
- I'm not sure, but the way I learned it, you are right. it should be 2x+3y=12
- well if slope of line 1 is equal to slope of line 2 they are parallel lets say if equation of line 1 is y=m1x+c and line 2 is y=m2x+c then m1 and m...
- Not necessarily. A Linear equation in standard form is written as *Ax + By = C*, This _does not_ mean that *A* should always be Positive. But by co...
- It does not matter which point you use in point slope form. If your answer is marked wrong, then you much have an error. If you tried posting your...
- I think y=mx+b is the easiest formula. I think it is the easiest because you can easily graph it, also if you need to change it into the other form...
- kind of.you can find the y-intercept in a slope equation like this: y=2x+6 the slope of the line is 2 and the y-intercept is 6. hope this helps
- In the point slope form, Sal uses "b" as a regular variable to represent the y-value in an ordered pair of the form (a, b). He is not using "b" at...
- Despite the fact that you just called me a "nerd" in a comment you posted on another entry, I'm going to try and answer you question anyway. Maybe...
Learn how to form, solve, and rearrange equations using the tools and conventions of algebra with BBC Bitesize GCSE Maths.
solve Quadratic Equations; solve Radical Equations; solve Equations with Sine, Cosine and Tangent; Check Your Solutions. You should always check that your "solution" really is a solution. How To Check. Take the solution(s) and put them in the original equation to see if they really work.
Equations and Formulas. What is an Equation? An equation says that two things are equal. It will have an equals sign "=" like this: That equations says: what is on the left (x + 2) is equal to what is on the right (6) So an equation is a statement " this equals that " (Note: this equation has the solution x=4, read how to solve equations.
