4x-(20-x)=6x-7(9-x)

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Solution for 4x-(20-x)=6x-7(9-x) equation: 



4x-(20-x)=6x-7(9-x)

We move all terms to the left:

4x-(20-x)-(6x-7(9-x))=0

We add all the numbers together, and all the variables

4x-(-1x+20)-(6x-7(-1x+9))=0

We get rid of parentheses

4x+1x-(6x-7(-1x+9))-20=0



We calculate terms in parentheses: -(6x-7(-1x+9)), so:

6x-7(-1x+9)

We multiply parentheses

6x+7x-63

We add all the numbers together, and all the variables

13x-63

Back to the equation:

-(13x-63)



We add all the numbers together, and all the variables

5x-(13x-63)-20=0

We get rid of parentheses

5x-13x+63-20=0

We add all the numbers together, and all the variables

-8x+43=0

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

-8x=-43

x=-43/-8

x=5+3/8

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