3(5+7x)=3(4x+8)

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Solution for 3(5+7x)=3(4x+8) equation: 



3(5+7x)=3(4x+8)

We move all terms to the left:

3(5+7x)-(3(4x+8))=0

We add all the numbers together, and all the variables

3(7x+5)-(3(4x+8))=0

We multiply parentheses

21x-(3(4x+8))+15=0



We calculate terms in parentheses: -(3(4x+8)), so:

3(4x+8)

We multiply parentheses

12x+24

Back to the equation:

-(12x+24)



We get rid of parentheses

21x-12x-24+15=0

We add all the numbers together, and all the variables

9x-9=0

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

9x=9

x=9/9

x=1

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