-5/7a+12=20

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Solution for -5/7a+12=20 equation: 



-5/7a+12=20

We move all terms to the left:

-5/7a+12-(20)=0



Domain of the equation: 7a!=0

a!=0/7

a!=0

a∈R



We add all the numbers together, and all the variables

-5/7a-8=0

We multiply all the terms by the denominator


-8*7a-5=0

Wy multiply elements

-56a-5=0

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

-56a=5

a=5/-56

a=-5/56

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