3x+4+2x-12+x+7=90

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Solution for 3x+4+2x-12+x+7=90 equation: 



3x+4+2x-12+x+7=90

We move all terms to the left:

3x+4+2x-12+x+7-(90)=0

We add all the numbers together, and all the variables

6x-91=0

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

6x=91

x=91/6

x=15+1/6

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