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Umnica [9.8K]
4 years ago
10

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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Step-by-step explanation:

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