15(3x+2)=21(2x+2)

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Solution for 15(3x+2)=21(2x+2) equation: 



15(3x+2)=21(2x+2)

We move all terms to the left:

15(3x+2)-(21(2x+2))=0

We multiply parentheses

45x-(21(2x+2))+30=0



We calculate terms in parentheses: -(21(2x+2)), so:

21(2x+2)

We multiply parentheses

42x+42

Back to the equation:

-(42x+42)



We get rid of parentheses

45x-42x-42+30=0

We add all the numbers together, and all the variables

3x-12=0

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

3x=12

x=12/3

x=4

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