4 years ago

Find the value of x. Please help me!

Mathematics

1 answer:

Serga [27]4 years ago

6 0

Answer:

X = 20

Step-by-step explanation:

The angle are supplementary:

Meaning that the two angles = 180°

Equation:

7x + x + 20 = 180

Solve:

7x + x + 20 = 180
8x + 20 -20 = 180 - 20
8x = 160
Divide 8 from both sides:
<u>x = 20</u>

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