20x+90=40

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Solution for 20x+90=40 equation: 



20x+90=40

We move all terms to the left:

20x+90-(40)=0

We add all the numbers together, and all the variables

20x+50=0

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

20x=-50

x=-50/20

x=-2+1/2

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