2u=4.2

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Solution for 2u=4.2 equation: 



2u=4.2

We move all terms to the left:

2u-(4.2)=0

We add all the numbers together, and all the variables

2u-4.2=0

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

2u=4.2

u=4.2/2

u=2+0.2/2

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