36=3u+6(u-3)

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Solution for 36=3u+6(u-3) equation: 


Simplifying
36 = 3u + 6(u + -3)

Reorder the terms:
36 = 3u + 6(-3 + u)
36 = 3u + (-3 * 6 + u * 6)
36 = 3u + (-18 + 6u)

Reorder the terms:
36 = -18 + 3u + 6u

Combine like terms: 3u + 6u = 9u
36 = -18 + 9u

Solving
36 = -18 + 9u

Solving for variable 'u'.

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

Add '-9u' to each side of the equation.
36 + -9u = -18 + 9u + -9u

Combine like terms: 9u + -9u = 0
36 + -9u = -18 + 0
36 + -9u = -18

Add '-36' to each side of the equation.
36 + -36 + -9u = -18 + -36

Combine like terms: 36 + -36 = 0
0 + -9u = -18 + -36
-9u = -18 + -36

Combine like terms: -18 + -36 = -54
-9u = -54

Divide each side by '-9'.
u = 6

Simplifying
u = 6

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