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Natasha_Volkova [10]
3 years ago
13

Parallel lines cut by a transversal

Mathematics
2 answers:
Vladimir [108]3 years ago
6 0

Answer:

x=5

Step-by-step explanation:

Hello There!

The angle labeled 20x and the angle that has a measure of 80 degrees are supplementary angles meaning the sum of the two is 180

so we can create an equation to solve for x

180=80+20x

step 1 subtract 80 from each side

80 - 80 cancels out

180-80=100

100=20x

step 2 divide each side by 20

100/20=5

20x/20=x

we´re left with x=5

klasskru [66]3 years ago
6 0
8 (hope this helps you)
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