2u+15=3

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Solution for 2u+15=3 equation: 



2u+15=3

We move all terms to the left:

2u+15-(3)=0

We add all the numbers together, and all the variables

2u+12=0

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

2u=-12

u=-12/2

u=-6

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