6u+9=3-u

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Solution for 6u+9=3-u equation:


Simplifying
6u + 9 = 3 + -1u

Reorder the terms:
9 + 6u = 3 + -1u

Solving
9 + 6u = 3 + -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.
9 + 6u + u = 3 + -1u + u

Combine like terms: 6u + u = 7u
9 + 7u = 3 + -1u + u

Combine like terms: -1u + u = 0
9 + 7u = 3 + 0
9 + 7u = 3

Add '-9' to each side of the equation.
9 + -9 + 7u = 3 + -9

Combine like terms: 9 + -9 = 0
0 + 7u = 3 + -9
7u = 3 + -9

Combine like terms: 3 + -9 = -6
7u = -6

Divide each side by '7'.
u = -0.8571428571

Simplifying
u = -0.8571428571

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