7x+9=12x-6

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Solution for 7x+9=12x-6 equation: 



7x+9=12x-6

We move all terms to the left:

7x+9-(12x-6)=0

We get rid of parentheses

7x-12x+6+9=0

We add all the numbers together, and all the variables

-5x+15=0

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

-5x=-15

x=-15/-5

x=+3

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