40x+20=45x-90

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Solution for 40x+20=45x-90 equation: 



40x+20=45x-90

We move all terms to the left:

40x+20-(45x-90)=0

We get rid of parentheses

40x-45x+90+20=0

We add all the numbers together, and all the variables

-5x+110=0

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

-5x=-110

x=-110/-5

x=+22

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