15=12-4x

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Solution for 15=12-4x equation: 



15=12-4x

We move all terms to the left:

15-(12-4x)=0

We add all the numbers together, and all the variables

-(-4x+12)+15=0

We get rid of parentheses

4x-12+15=0

We add all the numbers together, and all the variables

4x+3=0

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

4x=-3

x=-3/4

x=-3/4

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