12=7-15x

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Solution for 12=7-15x equation: 



12=7-15x

We move all terms to the left:

12-(7-15x)=0

We add all the numbers together, and all the variables

-(-15x+7)+12=0

We get rid of parentheses

15x-7+12=0

We add all the numbers together, and all the variables

15x+5=0

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

15x=-5

x=-5/15

x=-1/3

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