40=3x+9

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Solution for 40=3x+9 equation: 



40=3x+9

We move all terms to the left:

40-(3x+9)=0

We get rid of parentheses

-3x-9+40=0

We add all the numbers together, and all the variables

-3x+31=0

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

-3x=-31

x=-31/-3

x=10+1/3

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