-4q/8=21

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Solution for -4q/8=21 equation: 



-4q/8=21

We move all terms to the left:

-4q/8-(21)=0

We multiply all the terms by the denominator


-4q-21*8=0

We add all the numbers together, and all the variables

-4q-168=0

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

-4q=168

q=168/-4

q=-42

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