5/7a=20

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Solution for 5/7a=20 equation: 



5/7a=20

We move all terms to the left:

5/7a-(20)=0



Domain of the equation: 7a!=0

a!=0/7

a!=0

a∈R



We multiply all the terms by the denominator


-20*7a+5=0

Wy multiply elements

-140a+5=0

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

-140a=-5

a=-5/-140

a=1/28

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