Angles Two Step Equations

Find the value of x.

• 15

• 16

• 18

• 19

Tags

CCSS.7.G.B.5

Tell whether the angles are complementary or supplementary. Then find the value of x.

• Complementary; x=25

• Complementary; x=5

• Supplementary; x=25

• Supplementary; x=5

Tags

CCSS.7.G.B.5

This straight angle was measured at 5y + 160 degrees. What equation would we use to find the value of y?

• 5y + 160 = 90

• 160 = 180

• 5y = 160

• 5y + 160 = 180

Tags

CCSS.7.G.B.5

This straight angle was measured at 5y + 160 degrees. We can use the equation

5y + 160 = 180

Find the value of y

• y = 180

• y = 4

• y = 68

• y = 20

Tags

CCSS.7.G.B.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

These two angles are supplementary (they combine to make a straight angle). One angle is 60 degrees, the other is 20x degrees.

We can use the equation:

20x + 60 = 180

Solve for x

• x = 6

• x = 120

• x = 100

• x = 20

Tags

CCSS.7.G.B.5

These two angles are supplementary (they combine to be a straight angle). All we know is that one angle is 4 times larger than the other angle. What equation could we use to figure out what y equals?

• 5y = 100

• y = 4y

• 4y + y = 180

• 4y + y = 90

Tags

CCSS.7.G.B.5

These two angles are supplementary (they combine to be a straight angle). All we know is that one angle is 4 times larger than the other angle. We can use the equation: 4y + y = 180 Find the value for y

• y = 36

• y = 18

• y = 144

• y = 20

Tags

CCSS.7.G.B.5

I have a straight angle. The angle measures 10x. What equation would I set up to find the value of x?

• x = 180

• 10x = 90

• 10x = 180

• 10 + x = 100

Tags

CCSS.7.G.B.5

I have a straight angle. The angle measures 10x. I can use the equation

10x = 180

Find x.

• x = 10

• x = 170

• x = 18

• x = 40

Tags

CCSS.7.G.B.5