3u-3u+u+1=9

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Solution for 3u-3u+u+1=9 equation: 


Simplifying
3u + -3u + u + 1 = 9

Reorder the terms:
1 + 3u + -3u + u = 9

Combine like terms: 3u + -3u = 0
1 + 0 + u = 9
1 + u = 9

Solving
1 + u = 9

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + u = 9 + -1

Combine like terms: 1 + -1 = 0
0 + u = 9 + -1
u = 9 + -1

Combine like terms: 9 + -1 = 8
u = 8

Simplifying
u = 8

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