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fomenos
2 years ago
5

Find the value of x.

Mathematics
1 answer:
Arlecino [84]2 years ago
7 0

Answer:

<h2>20</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • equation
  • PEMDAS
<h3>tips and formulas:</h3>
  • a straight line contains 180°
<h3>let's solve:</h3>

according to the question

7x+x+20=180

=>8x+20=180

=>8x=160

therefore

x=20

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