6x-15=-12x-87

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Solution for 6x-15=-12x-87 equation: 



6x-15=-12x-87

We move all terms to the left:

6x-15-(-12x-87)=0

We get rid of parentheses

6x+12x+87-15=0

We add all the numbers together, and all the variables

18x+72=0

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

18x=-72

x=-72/18

x=-4

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