10u+9=7u-10+1

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Solution for 10u+9=7u-10+1 equation: 



10u+9=7u-10+1

We move all terms to the left:

10u+9-(7u-10+1)=0

We add all the numbers together, and all the variables

10u-(7u-9)+9=0

We get rid of parentheses

10u-7u+9+9=0

We add all the numbers together, and all the variables

3u+18=0

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

3u=-18

u=-18/3

u=-6

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