4u-3u+u=4+5-u

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Solution for 4u-3u+u=4+5-u equation:


Simplifying
4u + -3u + u = 4 + 5 + -1u

Combine like terms: 4u + -3u = 1u
1u + u = 4 + 5 + -1u

Combine like terms: 1u + u = 2u
2u = 4 + 5 + -1u

Combine like terms: 4 + 5 = 9
2u = 9 + -1u

Solving
2u = 9 + -1u

Solving for variable 'u'.

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

Add 'u' to each side of the equation.
2u + u = 9 + -1u + u

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

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

Divide each side by '3'.
u = 3

Simplifying
u = 3

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