-1/7a=-3

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Solution for -1/7a=-3 equation: 



-1/7a=-3

We move all terms to the left:

-1/7a-(-3)=0



Domain of the equation: 7a!=0

a!=0/7

a!=0

a∈R



We add all the numbers together, and all the variables

-1/7a+3=0

We multiply all the terms by the denominator


3*7a-1=0

Wy multiply elements

21a-1=0

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

21a=1

a=1/21

a=1/21

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