42+30+2u=180

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Solution for 42+30+2u=180 equation: 



42+30+2u=180

We move all terms to the left:

42+30+2u-(180)=0

We add all the numbers together, and all the variables

2u-108=0

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

2u=108

u=108/2

u=54

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