3(5-u)=3u-9

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Solution for 3(5-u)=3u-9 equation: 



3(5-u)=3u-9

We move all terms to the left:

3(5-u)-(3u-9)=0

We add all the numbers together, and all the variables

3(-1u+5)-(3u-9)=0

We multiply parentheses

-3u-(3u-9)+15=0

We get rid of parentheses

-3u-3u+9+15=0

We add all the numbers together, and all the variables

-6u+24=0

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

-6u=-24

u=-24/-6

u=+4

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