Solving Problems Involving Angles and Equations

Find the value of x.

Tags

CCSS.8.G.A.5

Select the pair(s) of supplementary angles.

Set up an equation that will help you solve for x.

• 60 + 75 + 180 = x

• 60 + 75 + x = 180

• 60 + 75 = x

• 60 + x = 75

Tags

CCSS.8.G.A.5

Set up the equation to solve for the missing angle

• 50 + 120 + x = 180

• x + 50 = 120

• 120 + 50 = x

• x + 120 = 50

Tags

CCSS.8.G.A.5

Look at the diagram.

Which equation can be used to solve for x?​ (a)  

• 3x+36=90

• 39x=90

• 3x+36=180

• 39x=180

Tags

7.11.C

Mathematical Equivalence

ON

Tags

CCSS.7.G.B.5

Mathematical Equivalence

ON

Tags

CCSS.8.G.A.5

Set up an equation that will help you find the missing angle

• 80 + x = 110

• 80 + 110 + x = 180

• 110 + x = 80

• 80 + 110 = x

Tags

CCSS.7.G.B.5

Tags

CCSS.8.G.A.5

• Cannot be determined

Tags

CCSS.8.G.A.5