21/5x=-3

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Solution for 21/5x=-3 equation: 



21/5x=-3

We move all terms to the left:

21/5x-(-3)=0



Domain of the equation: 5x!=0

x!=0/5

x!=0

x∈R



We add all the numbers together, and all the variables

21/5x+3=0

We multiply all the terms by the denominator


3*5x+21=0

Wy multiply elements

15x+21=0

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

15x=-21

x=-21/15

x=-1+2/5

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