5u+15=2(u-3)

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Solution for 5u+15=2(u-3) equation:


Simplifying
5u + 15 = 2(u + -3)

Reorder the terms:
15 + 5u = 2(u + -3)

Reorder the terms:
15 + 5u = 2(-3 + u)
15 + 5u = (-3 * 2 + u * 2)
15 + 5u = (-6 + 2u)

Solving
15 + 5u = -6 + 2u

Solving for variable 'u'.

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

Add '-2u' to each side of the equation.
15 + 5u + -2u = -6 + 2u + -2u

Combine like terms: 5u + -2u = 3u
15 + 3u = -6 + 2u + -2u

Combine like terms: 2u + -2u = 0
15 + 3u = -6 + 0
15 + 3u = -6

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

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

Combine like terms: -6 + -15 = -21
3u = -21

Divide each side by '3'.
u = -7

Simplifying
u = -7

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