40=2x+x+7

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Solution for 40=2x+x+7 equation: 



40=2x+x+7

We move all terms to the left:

40-(2x+x+7)=0

We add all the numbers together, and all the variables

-(3x+7)+40=0

We get rid of parentheses

-3x-7+40=0

We add all the numbers together, and all the variables

-3x+33=0

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

-3x=-33

x=-33/-3

x=+11

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