20x-9=40x-7

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Solution for 20x-9=40x-7 equation: 



20x-9=40x-7

We move all terms to the left:

20x-9-(40x-7)=0

We get rid of parentheses

20x-40x+7-9=0

We add all the numbers together, and all the variables

-20x-2=0

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

-20x=2

x=2/-20

x=-1/10

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