7u-5u-2=20

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Solution for 7u-5u-2=20 equation: 



7u-5u-2=20

We move all terms to the left:

7u-5u-2-(20)=0

We add all the numbers together, and all the variables

2u-22=0

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

2u=22

u=22/2

u=11

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