-(-90)=45x

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Solution for -(-90)=45x equation: 



-(-90)=45x

We move all terms to the left:

-(-90)-(45x)=0

We add all the numbers together, and all the variables

-45x+90=0

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

-45x=-90

x=-90/-45

x=+2

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