19x=20(x-1)

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Solution for 19x=20(x-1) equation: 



19x=20(x-1)

We move all terms to the left:

19x-(20(x-1))=0



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

20(x-1)

We multiply parentheses

20x-20

Back to the equation:

-(20x-20)



We get rid of parentheses

19x-20x+20=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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