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

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


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

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

Reorder the terms:
-45 + -9u = 3(9 + u)
-45 + -9u = (9 * 3 + u * 3)
-45 + -9u = (27 + 3u)

Solving
-45 + -9u = 27 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
-45 + -9u + -3u = 27 + 3u + -3u

Combine like terms: -9u + -3u = -12u
-45 + -12u = 27 + 3u + -3u

Combine like terms: 3u + -3u = 0
-45 + -12u = 27 + 0
-45 + -12u = 27

Add '45' to each side of the equation.
-45 + 45 + -12u = 27 + 45

Combine like terms: -45 + 45 = 0
0 + -12u = 27 + 45
-12u = 27 + 45

Combine like terms: 27 + 45 = 72
-12u = 72

Divide each side by '-12'.
u = -6

Simplifying
u = -6

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