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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

7(-1x+3)-(7(-2x+4))=0

We multiply parentheses

-7x-(7(-2x+4))+21=0



We calculate terms in parentheses: -(7(-2x+4)), so:

7(-2x+4)

We multiply parentheses

-14x+28

Back to the equation:

-(-14x+28)



We get rid of parentheses

-7x+14x-28+21=0

We add all the numbers together, and all the variables

7x-7=0

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

7x=7

x=7/7

x=1

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