7x+28=12-x

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Solution for 7x+28=12-x equation: 



7x+28=12-x

We move all terms to the left:

7x+28-(12-x)=0

We add all the numbers together, and all the variables

7x-(-1x+12)+28=0

We get rid of parentheses

7x+1x-12+28=0

We add all the numbers together, and all the variables

8x+16=0

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

8x=-16

x=-16/8

x=-2

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