12x+9=10x-7

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Solution for 12x+9=10x-7 equation: 



12x+9=10x-7

We move all terms to the left:

12x+9-(10x-7)=0

We get rid of parentheses

12x-10x+7+9=0

We add all the numbers together, and all the variables

2x+16=0

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

2x=-16

x=-16/2

x=-8

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