12x=20(80-x)

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Solution for 12x=20(80-x) equation: 



12x=20(80-x)

We move all terms to the left:

12x-(20(80-x))=0

We add all the numbers together, and all the variables

12x-(20(-1x+80))=0



We calculate terms in parentheses: -(20(-1x+80)), so:

20(-1x+80)

We multiply parentheses

-20x+1600

Back to the equation:

-(-20x+1600)



We get rid of parentheses

12x+20x-1600=0

We add all the numbers together, and all the variables

32x-1600=0

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

32x=1600

x=1600/32

x=50

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