3(5x-7)=3(4-2x)

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Solution for 3(5x-7)=3(4-2x) equation: 



3(5x-7)=3(4-2x)

We move all terms to the left:

3(5x-7)-(3(4-2x))=0

We add all the numbers together, and all the variables

3(5x-7)-(3(-2x+4))=0

We multiply parentheses

15x-(3(-2x+4))-21=0



We calculate terms in parentheses: -(3(-2x+4)), so:

3(-2x+4)

We multiply parentheses

-6x+12

Back to the equation:

-(-6x+12)



We get rid of parentheses

15x+6x-12-21=0

We add all the numbers together, and all the variables

21x-33=0

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

21x=33

x=33/21

x=1+4/7

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