5(u-5)=3u-21

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Solution for 5(u-5)=3u-21 equation: 



5(u-5)=3u-21

We move all terms to the left:

5(u-5)-(3u-21)=0

We multiply parentheses

5u-(3u-21)-25=0

We get rid of parentheses

5u-3u+21-25=0

We add all the numbers together, and all the variables

2u-4=0

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

2u=4

u=4/2

u=2

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