80(20-x)=20x

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



80(20-x)=20x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-20x-80x+1600=0

We add all the numbers together, and all the variables

-100x+1600=0

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

-100x=-1600

x=-1600/-100

x=+16

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