7u-3=3u+9

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Solution for 7u-3=3u+9 equation:



7u-3=3u+9
We move all terms to the left:
7u-3-(3u+9)=0
We get rid of parentheses
7u-3u-9-3=0
We add all the numbers together, and all the variables
4u-12=0
We move all terms containing u to the left, all other terms to the right
4u=12
u=12/4
u=3

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