12-3/7x=-21

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Solution for 12-3/7x=-21 equation: 



12-3/7x=-21

We move all terms to the left:

12-3/7x-(-21)=0



Domain of the equation: 7x!=0

x!=0/7

x!=0

x∈R



We add all the numbers together, and all the variables

-3/7x+33=0

We multiply all the terms by the denominator


33*7x-3=0

Wy multiply elements

231x-3=0

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

231x=3

x=3/231

x=1/77

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