12x+-30=140-6x

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Solution for 12x+-30=140-6x equation: 



12x+-30=140-6x

We move all terms to the left:

12x+-30-(140-6x)=0

We add all the numbers together, and all the variables

12x-(-6x+140)-30+=0

We add all the numbers together, and all the variables

12x-(-6x+140)=0

We get rid of parentheses

12x+6x-140=0

We add all the numbers together, and all the variables

18x-140=0

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

18x=140

x=140/18

x=7+7/9

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