9x+90=72-3x

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Solution for 9x+90=72-3x equation: 



9x+90=72-3x

We move all terms to the left:

9x+90-(72-3x)=0

We add all the numbers together, and all the variables

9x-(-3x+72)+90=0

We get rid of parentheses

9x+3x-72+90=0

We add all the numbers together, and all the variables

12x+18=0

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

12x=-18

x=-18/12

x=-1+1/2

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