-20x=-900

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Solution for -20x=-900 equation: 



-20x=-900

We move all terms to the left:

-20x-(-900)=0

We add all the numbers together, and all the variables

-20x+900=0

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

-20x=-900

x=-900/-20

x=+45

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