7x+12=3-2x

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Solution for 7x+12=3-2x equation: 



7x+12=3-2x

We move all terms to the left:

7x+12-(3-2x)=0

We add all the numbers together, and all the variables

7x-(-2x+3)+12=0

We get rid of parentheses

7x+2x-3+12=0

We add all the numbers together, and all the variables

9x+9=0

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

9x=-9

x=-9/9

x=-1

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