15=1/3(6x-21)

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Solution for 15=1/3(6x-21) equation: 



15=1/3(6x-21)

We move all terms to the left:

15-(1/3(6x-21))=0



Domain of the equation: 3(6x-21))!=0

x∈R



We multiply all the terms by the denominator


-(1+15*3(6x-21))=0



We calculate terms in parentheses: -(1+15*3(6x-21)), so:

1+15*3(6x-21)

determiningTheFunctionDomain
15*3(6x-21)+1

Wy multiply elements

45x(6+1

Back to the equation:

-(45x(6+1)



We add all the numbers together, and all the variables

-(45x7=0

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