30x+12=-3+15x

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Solution for 30x+12=-3+15x equation: 



30x+12=-3+15x

We move all terms to the left:

30x+12-(-3+15x)=0

We add all the numbers together, and all the variables

30x-(15x-3)+12=0

We get rid of parentheses

30x-15x+3+12=0

We add all the numbers together, and all the variables

15x+15=0

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

15x=-15

x=-15/15

x=-1

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