3u+45=9(u-1)

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Solution for 3u+45=9(u-1) equation:


Simplifying
3u + 45 = 9(u + -1)

Reorder the terms:
45 + 3u = 9(u + -1)

Reorder the terms:
45 + 3u = 9(-1 + u)
45 + 3u = (-1 * 9 + u * 9)
45 + 3u = (-9 + 9u)

Solving
45 + 3u = -9 + 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.
45 + 3u + -9u = -9 + 9u + -9u

Combine like terms: 3u + -9u = -6u
45 + -6u = -9 + 9u + -9u

Combine like terms: 9u + -9u = 0
45 + -6u = -9 + 0
45 + -6u = -9

Add '-45' to each side of the equation.
45 + -45 + -6u = -9 + -45

Combine like terms: 45 + -45 = 0
0 + -6u = -9 + -45
-6u = -9 + -45

Combine like terms: -9 + -45 = -54
-6u = -54

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

Simplifying
u = 9

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