21x+24=3(6x+13)

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Solution for 21x+24=3(6x+13) equation: 



21x+24=3(6x+13)

We move all terms to the left:

21x+24-(3(6x+13))=0



We calculate terms in parentheses: -(3(6x+13)), so:

3(6x+13)

We multiply parentheses

18x+39

Back to the equation:

-(18x+39)



We get rid of parentheses

21x-18x-39+24=0

We add all the numbers together, and all the variables

3x-15=0

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

3x=15

x=15/3

x=5

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