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Gnom [1K]
3 years ago
10

Help please I don’t understand any of this

Mathematics
2 answers:
sveta [45]3 years ago
6 0

The two angles form a straight line which is equal to 180 degrees. This makes the angles supplemtary.

To find x, add the two angles together to equal 180:

7x + x+20 = 180

Combine like terms:

8x + 20 = 180

Subtract 20 from both sides:

8x = 160

Divide both sides by 8:

X = 20

myrzilka [38]3 years ago
4 0

Answer:

x=20

Step-by-step explanation:

2(7x)+2(x+20)=360

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