5/7a=-15

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Solution for 5/7a=-15 equation: 



5/7a=-15

We move all terms to the left:

5/7a-(-15)=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+15=0

We multiply all the terms by the denominator


15*7a+5=0

Wy multiply elements

105a+5=0

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

105a=-5

a=-5/105

a=-1/21

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