15+2/5a-12=1

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Solution for 15+2/5a-12=1 equation: 



15+2/5a-12=1

We move all terms to the left:

15+2/5a-12-(1)=0



Domain of the equation: 5a!=0

a!=0/5

a!=0

a∈R



We add all the numbers together, and all the variables

2/5a+2=0

We multiply all the terms by the denominator


2*5a+2=0

Wy multiply elements

10a+2=0

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

10a=-2

a=-2/10

a=-1/5

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