3/7(x-21)=-18

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Solution for 3/7(x-21)=-18 equation: 



3/7(x-21)=-18

We move all terms to the left:

3/7(x-21)-(-18)=0



Domain of the equation: 7(x-21)!=0

x∈R



We add all the numbers together, and all the variables

3/7(x-21)+18=0

We multiply all the terms by the denominator


18*7(x-21)+3=0

Wy multiply elements

126x(x+3=0

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