1+2u=13

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Solution for 1+2u=13 equation: 



1+2u=13

We move all terms to the left:

1+2u-(13)=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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