12x-4=-30-5x+9

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Solution for 12x-4=-30-5x+9 equation: 



12x-4=-30-5x+9

We move all terms to the left:

12x-4-(-30-5x+9)=0

We add all the numbers together, and all the variables

12x-(-5x-21)-4=0

We get rid of parentheses

12x+5x+21-4=0

We add all the numbers together, and all the variables

17x+17=0

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

17x=-17

x=-17/17

x=-1

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