21x+75=3(11x+7)

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Solution for 21x+75=3(11x+7) equation: 



21x+75=3(11x+7)

We move all terms to the left:

21x+75-(3(11x+7))=0



We calculate terms in parentheses: -(3(11x+7)), so:

3(11x+7)

We multiply parentheses

33x+21

Back to the equation:

-(33x+21)



We get rid of parentheses

21x-33x-21+75=0

We add all the numbers together, and all the variables

-12x+54=0

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

-12x=-54

x=-54/-12

x=4+1/2

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