7x+4=15+8x

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Solution for 7x+4=15+8x equation: 



7x+4=15+8x

We move all terms to the left:

7x+4-(15+8x)=0

We add all the numbers together, and all the variables

7x-(8x+15)+4=0

We get rid of parentheses

7x-8x-15+4=0

We add all the numbers together, and all the variables

-1x-11=0

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

-x=11

x=11/-1

x=-11

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