7x+2x+4=2x-12

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Solution for 7x+2x+4=2x-12 equation: 



7x+2x+4=2x-12

We move all terms to the left:

7x+2x+4-(2x-12)=0

We add all the numbers together, and all the variables

9x-(2x-12)+4=0

We get rid of parentheses

9x-2x+12+4=0

We add all the numbers together, and all the variables

7x+16=0

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

7x=-16

x=-16/7

x=-2+2/7

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