7x+12=8x+3

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Solution for 7x+12=8x+3 equation: 



7x+12=8x+3

We move all terms to the left:

7x+12-(8x+3)=0

We get rid of parentheses

7x-8x-3+12=0

We add all the numbers together, and all the variables

-1x+9=0

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

-x=-9

x=-9/-1

x=+9

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