12/3a=-15

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Solution for 12/3a=-15 equation: 



12/3a=-15

We move all terms to the left:

12/3a-(-15)=0



Domain of the equation: 3a!=0

a!=0/3

a!=0

a∈R



We add all the numbers together, and all the variables

12/3a+15=0

We multiply all the terms by the denominator


15*3a+12=0

Wy multiply elements

45a+12=0

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

45a=-12

a=-12/45

a=-4/15

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