3x-12+4x+9+2x=90

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Solution for 3x-12+4x+9+2x=90 equation: 



3x-12+4x+9+2x=90

We move all terms to the left:

3x-12+4x+9+2x-(90)=0

We add all the numbers together, and all the variables

9x-93=0

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

9x=93

x=93/9

x=10+1/3

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