-3u-15=3(u-1)

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Solution for -3u-15=3(u-1) equation:


Simplifying
-3u + -15 = 3(u + -1)

Reorder the terms:
-15 + -3u = 3(u + -1)

Reorder the terms:
-15 + -3u = 3(-1 + u)
-15 + -3u = (-1 * 3 + u * 3)
-15 + -3u = (-3 + 3u)

Solving
-15 + -3u = -3 + 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.
-15 + -3u + -3u = -3 + 3u + -3u

Combine like terms: -3u + -3u = -6u
-15 + -6u = -3 + 3u + -3u

Combine like terms: 3u + -3u = 0
-15 + -6u = -3 + 0
-15 + -6u = -3

Add '15' to each side of the equation.
-15 + 15 + -6u = -3 + 15

Combine like terms: -15 + 15 = 0
0 + -6u = -3 + 15
-6u = -3 + 15

Combine like terms: -3 + 15 = 12
-6u = 12

Divide each side by '-6'.
u = -2

Simplifying
u = -2

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