5+7=2x+40

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Solution for 5+7=2x+40 equation: 



5+7=2x+40

We move all terms to the left:

5+7-(2x+40)=0

We add all the numbers together, and all the variables

-(2x+40)+12=0

We get rid of parentheses

-2x-40+12=0

We add all the numbers together, and all the variables

-2x-28=0

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

-2x=28

x=28/-2

x=-14

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