First Step for Solving Equations

Front

What is the opposite operation for subtraction?

Back

Addition is the opposite operation for subtraction.

Front

What is the opposite operation for multiplication?

Back

Division is the opposite operation for multiplication.

Front

What is the opposite operation for addition?

Back

Subtraction is the opposite operation for addition.

Front

How do you isolate a variable in an equation?

Back

To isolate a variable, perform the opposite operation to both sides of the equation.

Front

What is the first step in solving the equation 300 + y = 200?

Back

Subtract 300 from both sides to isolate y.

Front

What is the opposite of -123 in an equation?

Back

The opposite of -123 is +123.

Front

If -11x = 121, what operation would you use to solve for x?

Back

You would divide both sides by -11.

Front

In the equation 99 = 12 + y, how do you solve for y?

Back

Subtract 12 from both sides to isolate y.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is the value of x in the equation 11 + x = 13?

Back

x = 2.