Question

I need help........
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Answer 1

x = 10

Explanation:

the sum of the 3 angles in a triangle = 180°

sum the 3 angles, equate to 180 and solve for x

4x + 7x + 7x = 180 ( simplify left side )

18x = 180 ( divide both sides by 18 )

`(18)/(18)` x =
`(180)/(18)` , then

x = 10