SOLUTION: Angle A is three times the size of angle B (angle B is x+2). The sum of the angle measures 128 degrees. Find the value of x.
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Question 666188: Angle A is three times the size of angle B (angle B is x+2). The sum of the angle measures 128 degrees. Find the value of x. Answer by ReadingBoosters(3246) (Show Source):
You can put this solution on YOUR website! Given
A = 3B
B = x+2
A+B=128
...
Substitute
Substitute A and B into the last equation, such that
3B + B = 128
so
3(x+2) + x+2 = 128
...
Distribute the 3
3x + 6 + x+2 = 128
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Combine like terms
4x + 8 = 128
4x = 120
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