21=5/6a+1

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Solution for 21=5/6a+1 equation: 



21=5/6a+1

We move all terms to the left:

21-(5/6a+1)=0



Domain of the equation: 6a+1)!=0

a∈R



We get rid of parentheses

-5/6a-1+21=0

We multiply all the terms by the denominator


-1*6a+21*6a-5=0

Wy multiply elements

-6a+126a-5=0

We add all the numbers together, and all the variables

120a-5=0

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

120a=5

a=5/120

a=1/24

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