Solving One-Step Equations: Addition and Subtraction

Front

What is a one-step equation?

Back

A one-step equation is an algebraic equation that can be solved in a single step, typically involving addition or subtraction to isolate the variable.

Front

How do you solve the equation 2 + a = 11?

Back

Subtract 2 from both sides: a = 11 - 2, so a = 9.

Front

What is the solution to the equation 25 = y + 20?

Back

Subtract 20 from both sides: y = 25 - 20, so y = 5.

Front

How do you solve k + 17 = 30?

Back

Subtract 17 from both sides: k = 30 - 17, so k = 13.

Front

What is the solution to the equation b - 14 = 6?

Back

Add 14 to both sides: b = 6 + 14, so b = 20.

Front

How do you solve the equation 18 = c + 5?

Back

Subtract 5 from both sides: c = 18 - 5, so c = 13.

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

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

Back

To isolate a variable means to manipulate the equation so that the variable is on one side by itself.

Front

What is the first step in solving the equation x + 4 = 12?

Back

Subtract 4 from both sides to isolate x.