7x+4=8x-20

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Solution for 7x+4=8x-20 equation: 



7x+4=8x-20

We move all terms to the left:

7x+4-(8x-20)=0

We get rid of parentheses

7x-8x+20+4=0

We add all the numbers together, and all the variables

-1x+24=0

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

-x=-24

x=-24/-1

x=+24

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