4+2u=7

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Solution for 4+2u=7 equation: 



4+2u=7

We move all terms to the left:

4+2u-(7)=0

We add all the numbers together, and all the variables

2u-3=0

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

2u=3

u=3/2

u=1+1/2

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