3(12-u)/5=-3u+9

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Solution for 3(12-u)/5=-3u+9 equation: 



3(12-u)/5=-3u+9

We move all terms to the left:

3(12-u)/5-(-3u+9)=0

We add all the numbers together, and all the variables

3(-1u+12)/5-(-3u+9)=0

We get rid of parentheses

3(-1u+12)/5+3u-9=0

We multiply all the terms by the denominator


3(-1u+12)+3u*5-9*5=0

We add all the numbers together, and all the variables

3(-1u+12)+3u*5-45=0

We multiply parentheses

-3u+3u*5+36-45=0

Wy multiply elements

-3u+15u+36-45=0

We add all the numbers together, and all the variables

12u-9=0

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

12u=9

u=9/12

u=3/4

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