15-1/5a=4/5a+7

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Solution for 15-1/5a=4/5a+7 equation: 



15-1/5a=4/5a+7

We move all terms to the left:

15-1/5a-(4/5a+7)=0



Domain of the equation: 5a!=0

a!=0/5

a!=0

a∈R





Domain of the equation: 5a+7)!=0

a∈R



We get rid of parentheses

-1/5a-4/5a-7+15=0

We multiply all the terms by the denominator


-7*5a+15*5a-1-4=0

We add all the numbers together, and all the variables

-7*5a+15*5a-5=0

Wy multiply elements

-35a+75a-5=0

We add all the numbers together, and all the variables

40a-5=0

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

40a=5

a=5/40

a=1/8

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