3-x=5(7-x)

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



3-x=5(7-x)

We move all terms to the left:

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

We add all the numbers together, and all the variables

-x-(5(-1x+7))+3=0

We add all the numbers together, and all the variables

-1x-(5(-1x+7))+3=0



We calculate terms in parentheses: -(5(-1x+7)), so:

5(-1x+7)

We multiply parentheses

-5x+35

Back to the equation:

-(-5x+35)



We get rid of parentheses

-1x+5x-35+3=0

We add all the numbers together, and all the variables

4x-32=0

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

4x=32

x=32/4

x=8

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