8x=2x+5(20-x)

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Solution for 8x=2x+5(20-x) equation: 



8x=2x+5(20-x)

We move all terms to the left:

8x-(2x+5(20-x))=0

We add all the numbers together, and all the variables

8x-(2x+5(-1x+20))=0



We calculate terms in parentheses: -(2x+5(-1x+20)), so:

2x+5(-1x+20)

We multiply parentheses

2x-5x+100

We add all the numbers together, and all the variables

-3x+100

Back to the equation:

-(-3x+100)



We get rid of parentheses

8x+3x-100=0

We add all the numbers together, and all the variables

11x-100=0

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

11x=100

x=100/11

x=9+1/11

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