a/(-4)=20

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Solution for a/(-4)=20 equation: 



a/(-4)=20

We move all terms to the left:

a/(-4)-(20)=0

We multiply all the terms by the denominator


a-20*(-4)=0

We add all the numbers together, and all the variables

a+80=0

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

a=-80

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