9x-3x+90=9x+42

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Solution for 9x-3x+90=9x+42 equation: 



9x-3x+90=9x+42

We move all terms to the left:

9x-3x+90-(9x+42)=0

We add all the numbers together, and all the variables

6x-(9x+42)+90=0

We get rid of parentheses

6x-9x-42+90=0

We add all the numbers together, and all the variables

-3x+48=0

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

-3x=-48

x=-48/-3

x=+16

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