7u-55=2u+35

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Solution for 7u-55=2u+35 equation: 



7u-55=2u+35

We move all terms to the left:

7u-55-(2u+35)=0

We get rid of parentheses

7u-2u-35-55=0

We add all the numbers together, and all the variables

5u-90=0

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

5u=90

u=90/5

u=18

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