9x+3x=2x+70

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Solution for 9x+3x=2x+70 equation: 



9x+3x=2x+70

We move all terms to the left:

9x+3x-(2x+70)=0

We add all the numbers together, and all the variables

12x-(2x+70)=0

We get rid of parentheses

12x-2x-70=0

We add all the numbers together, and all the variables

10x-70=0

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

10x=70

x=70/10

x=7

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