4u=42-20

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Solution for 4u=42-20 equation: 



4u=42-20

We move all terms to the left:

4u-(42-20)=0

We add all the numbers together, and all the variables

4u-22=0

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

4u=22

u=22/4

u=5+1/2

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