+3x+3x+42=90

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Solution for +3x+3x+42=90 equation: 



+3x+3x+42=90

We move all terms to the left:

+3x+3x+42-(90)=0

We add all the numbers together, and all the variables

6x-48=0

We move all terms containing x to the left, all other terms to the right

6x=48

x=48/6

x=8

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