40-3x=20+7

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Solution for 40-3x=20+7 equation: 



40-3x=20+7

We move all terms to the left:

40-3x-(20+7)=0

We add all the numbers together, and all the variables

-3x+40-27=0

We add all the numbers together, and all the variables

-3x+13=0

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

-3x=-13

x=-13/-3

x=4+1/3

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