3u+2u-3u-1=9

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Solution for 3u+2u-3u-1=9 equation:


Simplifying
3u + 2u + -3u + -1 = 9

Reorder the terms:
-1 + 3u + 2u + -3u = 9

Combine like terms: 3u + 2u = 5u
-1 + 5u + -3u = 9

Combine like terms: 5u + -3u = 2u
-1 + 2u = 9

Solving
-1 + 2u = 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 + 2u = 9 + 1

Combine like terms: -1 + 1 = 0
0 + 2u = 9 + 1
2u = 9 + 1

Combine like terms: 9 + 1 = 10
2u = 10

Divide each side by '2'.
u = 5

Simplifying
u = 5

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