7x+3=8x-12

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



7x+3=8x-12

We move all terms to the left:

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

We get rid of parentheses

7x-8x+12+3=0

We add all the numbers together, and all the variables

-1x+15=0

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

-x=-15

x=-15/-1

x=+15

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