-39=3u+3(u+5)

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Solution for -39=3u+3(u+5) equation:


Simplifying
-39 = 3u + 3(u + 5)

Reorder the terms:
-39 = 3u + 3(5 + u)
-39 = 3u + (5 * 3 + u * 3)
-39 = 3u + (15 + 3u)

Reorder the terms:
-39 = 15 + 3u + 3u

Combine like terms: 3u + 3u = 6u
-39 = 15 + 6u

Solving
-39 = 15 + 6u

Solving for variable 'u'.

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

Add '-6u' to each side of the equation.
-39 + -6u = 15 + 6u + -6u

Combine like terms: 6u + -6u = 0
-39 + -6u = 15 + 0
-39 + -6u = 15

Add '39' to each side of the equation.
-39 + 39 + -6u = 15 + 39

Combine like terms: -39 + 39 = 0
0 + -6u = 15 + 39
-6u = 15 + 39

Combine like terms: 15 + 39 = 54
-6u = 54

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

Simplifying
u = -9

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