Solving One-Step Equations add and sub

Front

What is a one-step equation?

Back

A one-step equation is an algebraic equation that can be solved in a single step by performing the same operation on both sides of the equation.

Front

How do you solve the equation x + 9 = 12?

Back

Subtract 9 from both sides: x + 9 - 9 = 12 - 9, so x = 3.

Front

What is the inverse operation of addition?

Back

The inverse operation of addition is subtraction.

Front

What is the inverse operation of subtraction?

Back

The inverse operation of subtraction is addition.

Front

Solve for x: 59 = x + 30

Back

x = 29.

Front

Solve for x: x - 56 = 128

Back

x = 184.

Front

What does it mean to isolate the variable in an equation?

Back

To isolate the variable means to get the variable alone on one side of the equation.

Front

How do you solve the equation 20 = x - 27?

Back

Add 27 to both sides: 20 + 27 = x, so x = 47.

Front

What is the solution to the equation 56 = x + 21?

Back

x = 35.

Front

If x + 9 = 12, what is the value of x?

Back

x = 3.