7(10-3x)=5(10-4x)

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Solution for 7(10-3x)=5(10-4x) equation: 



7(10-3x)=5(10-4x)

We move all terms to the left:

7(10-3x)-(5(10-4x))=0

We add all the numbers together, and all the variables

7(-3x+10)-(5(-4x+10))=0

We multiply parentheses

-21x-(5(-4x+10))+70=0



We calculate terms in parentheses: -(5(-4x+10)), so:

5(-4x+10)

We multiply parentheses

-20x+50

Back to the equation:

-(-20x+50)



We get rid of parentheses

-21x+20x-50+70=0

We add all the numbers together, and all the variables

-1x+20=0

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

-x=-20

x=-20/-1

x=+20

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