Solving two step equations

Front

What is a two-step equation?

Back

A two-step equation is an algebraic equation that requires two operations to solve for the variable.

Front

How do you isolate a variable in a two-step equation?

Back

To isolate a variable, perform the inverse operations in reverse order: first undo addition or subtraction, then undo multiplication or division.

Front

Solve the equation: 3n + 4 = 7

Back

n = 1

Front

Solve the equation: 2x - 3 = 1

Back

x = 2

Front

Back

x = 21

Front

What is the first step to solve the equation: x - 4 = 12?

Back

Add 4 to both sides of the equation.

Front

Solve the equation: 4y + 1 = 13

Back

y = 3

Front

What is the inverse operation of addition?

Back

Subtraction is the inverse operation of addition.

Front

What is the inverse operation of multiplication?

Back

Division is the inverse operation of multiplication.

Front

If you have the equation 5x - 2 = 8, what is the first step to solve for x?

Back

Add 2 to both sides of the equation.