12+2x=7x-3

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Solution for 12+2x=7x-3 equation: 



12+2x=7x-3

We move all terms to the left:

12+2x-(7x-3)=0

We get rid of parentheses

2x-7x+3+12=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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