7-15-3u=5u-20

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Solution for 7-15-3u=5u-20 equation: 



7-15-3u=5u-20

We move all terms to the left:

7-15-3u-(5u-20)=0

We add all the numbers together, and all the variables

-3u-(5u-20)-8=0

We get rid of parentheses

-3u-5u+20-8=0

We add all the numbers together, and all the variables

-8u+12=0

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

-8u=-12

u=-12/-8

u=1+1/2

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