7x+8=4-x

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Solution for 7x+8=4-x equation: 



7x+8=4-x

We move all terms to the left:

7x+8-(4-x)=0

We add all the numbers together, and all the variables

7x-(-1x+4)+8=0

We get rid of parentheses

7x+1x-4+8=0

We add all the numbers together, and all the variables

8x+4=0

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

8x=-4

x=-4/8

x=-1/2

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