1/3(21x-12)=4x+3

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Solution for 1/3(21x-12)=4x+3 equation: 



1/3(21x-12)=4x+3

We move all terms to the left:

1/3(21x-12)-(4x+3)=0



Domain of the equation: 3(21x-12)!=0

x∈R



We get rid of parentheses

1/3(21x-12)-4x-3=0

We multiply all the terms by the denominator


-4x*3(21x-12)-3*3(21x-12)+1=0

Wy multiply elements

-12x^2(2-9x(2+1=0

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