y+42+y=138

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Solution for y+42+y=138 equation: 



y+42+y=138

We move all terms to the left:

y+42+y-(138)=0

We add all the numbers together, and all the variables

2y-96=0

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

2y=96

y=96/2

y=48

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