Solving Equations and Inverse Operations

Squaring and square rooting

Multiplication and division

Addition and subtraction

Exponentiation and logarithms

The square of the original number

Double the original number

Half of the original number

The original number

Divide both sides by 7

Add 7 to both sides

Subtract 7 from both sides

Multiply both sides by 7

To make the equation more complex

To eliminate the variable

To isolate the variable

To add more variables

x = 10

x = 5

x = 50

x = 20

Because they involve both positive and negative square roots

Because they involve addition and subtraction

Because they involve complex numbers

Because they involve multiplication and division

x = 50 and x = -50

x = 10 and x = -10

x = 5 and x = -5

x = 20 and x = -20

Division

Squaring

Subtraction

Addition

y = 20

y = 15

y = 25

y = 10

y = 225

y = 30

y = 450

y = 15