-1+-4/a=-7

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



-1+-4/a=-7

We move all terms to the left:

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



Domain of the equation: a!=0

a∈R



We add all the numbers together, and all the variables

-4/a+6=0

We multiply all the terms by the denominator


6*a-4=0

We add all the numbers together, and all the variables

6a-4=0

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

6a=4

a=4/6

a=2/3

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