-28+7x=21-2x

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Solution for -28+7x=21-2x equation: 



-28+7x=21-2x

We move all terms to the left:

-28+7x-(21-2x)=0

We add all the numbers together, and all the variables

7x-(-2x+21)-28=0

We get rid of parentheses

7x+2x-21-28=0

We add all the numbers together, and all the variables

9x-49=0

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

9x=49

x=49/9

x=5+4/9

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