7=2-5u

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Solution for 7=2-5u equation: 



7=2-5u

We move all terms to the left:

7-(2-5u)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

5u-2+7=0

We add all the numbers together, and all the variables

5u+5=0

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

5u=-5

u=-5/5

u=-1

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