-1/4(21x-12)=20

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Solution for -1/4(21x-12)=20 equation: 



-1/4(21x-12)=20

We move all terms to the left:

-1/4(21x-12)-(20)=0



Domain of the equation: 4(21x-12)!=0

x∈R



We multiply all the terms by the denominator


-20*4(21x-12)-1=0

Wy multiply elements

-80x(2-1=0

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