42+12x+x=55

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Solution for 42+12x+x=55 equation: 



42+12x+x=55

We move all terms to the left:

42+12x+x-(55)=0

We add all the numbers together, and all the variables

13x-13=0

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

13x=13

x=13/13

x=1

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