We have:
5(x + 7) = 85 |divide both sides by 5
x + 7 = 17 |subtract 7 from both sides
x = 10
Answer:
no
Step-by-step explanation:
14+6/2=17
6/2=3 + 14 = 17
Answer:
Step-by-step explanation:
The sum of the angle measures of a triangle is 180°. Find the value of x . Then find the angle measures of the triangle.
find the value of x
x + 2x + x + 8 = 180
4x = 180 - 8
4x = 172
x = 172 : 4
x = 43
find angles
2x = 43 * 2
2x = 86°
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x = 43°
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x + 8 = 43 + 8
x = 51°
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check
86 + 43 + 51 = 180°
the answer is good
