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Algebra

Chapter 25

Problem 2

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If one operation will undo another operation, the two operations are called the inverse operations.
1. Addition is the inverse operation of subtraction. (x - 5 = 2 add 5 to get x = 7)
2. Subtraction is the inverse operation of addition. (x + 2 = 7 subtract 2 to get x = 5)
3. Multiplication is the inverse operation of division. (x / 2 = 5 multiply by 2 to get x = 10)
4. Division is the inverse operation of multiplication. (2x = 10 divide by 2 to get x = 5)
Use one of the inverse operations to find the root of the following equations.

Given the equation (use the inverse of addition): x + =

The solution (root) of the equation: x =

Given the equation (use the inverse of subtraction): x - =

The solution (root) of the equation: x =

Given the equation (use the inverse of multiplication): x =

The solution (root) of the equation: x =

Given the equation (use the inverse of division): x / =

The solution (root) of the equation: x =