-6+7/9a=-21

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Solution for -6+7/9a=-21 equation: 



-6+7/9a=-21

We move all terms to the left:

-6+7/9a-(-21)=0



Domain of the equation: 9a!=0

a!=0/9

a!=0

a∈R



We add all the numbers together, and all the variables

7/9a+15=0

We multiply all the terms by the denominator


15*9a+7=0

Wy multiply elements

135a+7=0

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

135a=-7

a=-7/135

a=-7/135

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