-1/5a+21=25

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Solution for -1/5a+21=25 equation: 



-1/5a+21=25

We move all terms to the left:

-1/5a+21-(25)=0



Domain of the equation: 5a!=0

a!=0/5

a!=0

a∈R



We add all the numbers together, and all the variables

-1/5a-4=0

We multiply all the terms by the denominator


-4*5a-1=0

Wy multiply elements

-20a-1=0

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

-20a=1

a=1/-20

a=-1/20

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