20/a=4

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Solution for 20/a=4 equation: 



20/a=4

We move all terms to the left:

20/a-(4)=0



Domain of the equation: a!=0

a∈R



We multiply all the terms by the denominator


-4*a+20=0

We add all the numbers together, and all the variables

-4a+20=0

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

-4a=-20

a=-20/-4

a=+5

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