Solve 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.

Tags

CCSS.7.EE.B.4A

Front

What is the first step to solve the equation 3(x+5)=21?

Back

The first step is to divide both sides by 3 to isolate the term with the variable.

Tags

CCSS.7.EE.B.4A

Front

Solve for x: 3(x+5)=21

Back

x = 2.

Tags

CCSS.7.EE.B.4A

Front

What is the second step to solve the equation 4(x-9)=-16?

Back

The second step is to add 9 to both sides after dividing by 4.

Tags

CCSS.HSA.REI.A.1

Front

Solve for x: 4(x-9)=-16

Back

x = 5.

Tags

CCSS.7.EE.B.4A

Front

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

Back

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

Tags

CCSS.7.EE.B.4A

Front

What operation would you perform to both sides of the equation to eliminate a term?

Back

You would perform the inverse operation of that term.

Tags

CCSS.HSA.REI.A.1

Front

What is the inverse operation of addition?

Back

The inverse operation of addition is subtraction.

Tags

CCSS.HSA.REI.A.1

Front

What is the inverse operation of multiplication?

Back

The inverse operation of multiplication is division.

Tags

CCSS.3.OA.C.7

Front

If you have the equation x + 7 = 12, what is the first step to solve for x?

Back

Subtract 7 from both sides.

Tags

CCSS.6.EE.B.7