-4=a/20-5

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Solution for -4=a/20-5 equation: 



-4=a/20-5

We move all terms to the left:

-4-(a/20-5)=0

We get rid of parentheses

-a/20+5-4=0

We multiply all the terms by the denominator


-a+5*20-4*20=0

We add all the numbers together, and all the variables

-1a+20=0

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

-a=-20

a=-20/-1

a=+20

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