Solving One-step Equations (adding & subtracting)

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 by adding or subtracting a number from both sides.

Front

How do you solve the equation s + 42 = 75?

Back

Subtract 42 from both sides: s = 75 - 42, so s = 33.

Front

What is the solution to the equation 14 = x - 5?

Back

Add 5 to both sides: x = 14 + 5, so x = 19.

Front

How do you solve the equation 4.9 = x + 1.5?

Back

Subtract 1.5 from both sides: x = 4.9 - 1.5, so x = 3.4.

Front

What is the solution to the equation x + 12 = 20?

Back

Subtract 12 from both sides: x = 20 - 12, so x = 8.

Front

How do you solve the equation x + 3 = 29?

Back

Subtract 3 from both sides: x = 29 - 3, so x = 26.

Front

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

Back

Isolating the variable means to manipulate the equation so that the variable is on one side by itself.

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 is the first step in solving the equation x + 5 = 12?

Back

Subtract 5 from both sides: x = 12 - 5.