6x+12x=8x-40

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Solution for 6x+12x=8x-40 equation: 



6x+12x=8x-40

We move all terms to the left:

6x+12x-(8x-40)=0

We add all the numbers together, and all the variables

18x-(8x-40)=0

We get rid of parentheses

18x-8x+40=0

We add all the numbers together, and all the variables

10x+40=0

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

10x=-40

x=-40/10

x=-4

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