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 y - 4.6 = 12?

Back

Add 4.6 to both sides: y = 12 + 4.6, so y = 16.6.

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 - 9.2 = 8.3?

Back

Add 9.2 to both sides: x = 8.3 + 9.2, so x = 17.5.

Front

What is the solution to the equation 19 + a = -50?

Back

Subtract 19 from both sides: a = -50 - 19, so a = -69.

Front

How do you solve the equation 4 + b = 30?

Back

Subtract 4 from both sides: b = 30 - 4, so b = 26.

Front

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

Back

Isolating a variable means to manipulate the equation so that the variable is on one side by itself, making it easier to solve.

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

If x + 5 = 15, what is x?

Back

Subtract 5 from both sides: x = 15 - 5, so x = 10.