42=21x-6

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Solution for 42=21x-6 equation: 



42=21x-6

We move all terms to the left:

42-(21x-6)=0

We get rid of parentheses

-21x+6+42=0

We add all the numbers together, and all the variables

-21x+48=0

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

-21x=-48

x=-48/-21

x=2+2/7

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