8x+7=9x+28

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Solution for 8x+7=9x+28 equation: 



8x+7=9x+28

We move all terms to the left:

8x+7-(9x+28)=0

We get rid of parentheses

8x-9x-28+7=0

We add all the numbers together, and all the variables

-1x-21=0

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

-x=21

x=21/-1

x=-21

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