7x+12=9x-13

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Solution for 7x+12=9x-13 equation: 



7x+12=9x-13

We move all terms to the left:

7x+12-(9x-13)=0

We get rid of parentheses

7x-9x+13+12=0

We add all the numbers together, and all the variables

-2x+25=0

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

-2x=-25

x=-25/-2

x=12+1/2

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