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3 years ago

Consider the figure. What is the value of x?

Mathematics

1 answer:

QveST [7]3 years ago

6 0

7x+12
8x+3

Because it is a horizontal line the two angles must add up to 180°

So add the two angles up together and set it equal to 180°
7x+12+8x+3=180
Add the two x’s 7x+8x=15x
Add the constants 12+3=15

You get 15x+15=180
Now subtract 15 from both sides
15x=165
Now divide by 15 to get x
X=11

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