Solving Algebraic Equations

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X/3 - 7 = 5

First add 7 to both sides of the equation to get X/3 = 12, then multiply both sides of the equation by 3 to get X = 36 as your solution.

2X + 5 = 15

First subtract 5 from both sides of equation to get 2X = 10, then divide both sides of the equation by 2 to get X = 5 as your solution.

5X + 7 = 42

First subtract 7 from both sides of the equation to get 5X = 35, then divide both sides of the equation by 5 to get X = 7 as your solution

Whatever you do to one side of the equation

You must do to the other side of the equation

Inverse operations

operations that undo each other: addition is the inverse of subtraction and multiplication is the inverse of division.


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