12x+9=15x+7

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Solution for 12x+9=15x+7 equation: 



12x+9=15x+7

We move all terms to the left:

12x+9-(15x+7)=0

We get rid of parentheses

12x-15x-7+9=0

We add all the numbers together, and all the variables

-3x+2=0

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

-3x=-2

x=-2/-3

x=2/3

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