21x-30=-7x+28

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Solution for 21x-30=-7x+28 equation: 



21x-30=-7x+28

We move all terms to the left:

21x-30-(-7x+28)=0

We get rid of parentheses

21x+7x-28-30=0

We add all the numbers together, and all the variables

28x-58=0

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

28x=58

x=58/28

x=2+1/14

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