4.x+20=40

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Solution for 4.x+20=40 equation: 



4.x+20=40

We move all terms to the left:

4.x+20-(40)=0

We add all the numbers together, and all the variables

4.x-20=0

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

4.x=20

x=20/4.

x=5

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