12+u/3=7

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Solution for 12+u/3=7 equation: 



12+u/3=7

We move all terms to the left:

12+u/3-(7)=0

We add all the numbers together, and all the variables

u/3+5=0

We multiply all the terms by the denominator


u+5*3=0

We add all the numbers together, and all the variables

u+15=0

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

u=-15

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