9=5(u-3)+3u

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Solution for 9=5(u-3)+3u equation:


Simplifying
9 = 5(u + -3) + 3u

Reorder the terms:
9 = 5(-3 + u) + 3u
9 = (-3 * 5 + u * 5) + 3u
9 = (-15 + 5u) + 3u

Combine like terms: 5u + 3u = 8u
9 = -15 + 8u

Solving
9 = -15 + 8u

Solving for variable 'u'.

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

Add '-8u' to each side of the equation.
9 + -8u = -15 + 8u + -8u

Combine like terms: 8u + -8u = 0
9 + -8u = -15 + 0
9 + -8u = -15

Add '-9' to each side of the equation.
9 + -9 + -8u = -15 + -9

Combine like terms: 9 + -9 = 0
0 + -8u = -15 + -9
-8u = -15 + -9

Combine like terms: -15 + -9 = -24
-8u = -24

Divide each side by '-8'.
u = 3

Simplifying
u = 3

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