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sladkih [1.3K]
4 years ago
15

Can someone please answer with steps I did 7x=x+20 and then I subtracted x from 7x

Mathematics
1 answer:
mestny [16]4 years ago
4 0

Answer:

x = 20

Step-by-step explanation:

Adjacent angles on straight line add up to 180º

7x + (x + 20) = 180

7x + x + 20 = 180

8x + 20 = 180

8x = 160

x = 20

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