SOLUTION: how do you solve 3/4x - 13 +3x -17= 90 degrees

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Question 784311: how do you solve 3/4x - 13 +3x -17= 90 degrees
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
3 3/4x+30=90
3 3/4x=90-30
3 3/4x=60
15/4x=60
x=60/(15/4)
x=60*4/15
x=240/15
x=16