7u+9-2(-5u-3)=3(u-1)

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Solution for 7u+9-2(-5u-3)=3(u-1) equation:


Simplifying
7u + 9 + -2(-5u + -3) = 3(u + -1)

Reorder the terms:
7u + 9 + -2(-3 + -5u) = 3(u + -1)
7u + 9 + (-3 * -2 + -5u * -2) = 3(u + -1)
7u + 9 + (6 + 10u) = 3(u + -1)

Reorder the terms:
9 + 6 + 7u + 10u = 3(u + -1)

Combine like terms: 9 + 6 = 15
15 + 7u + 10u = 3(u + -1)

Combine like terms: 7u + 10u = 17u
15 + 17u = 3(u + -1)

Reorder the terms:
15 + 17u = 3(-1 + u)
15 + 17u = (-1 * 3 + u * 3)
15 + 17u = (-3 + 3u)

Solving
15 + 17u = -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 + 17u + -3u = -3 + 3u + -3u

Combine like terms: 17u + -3u = 14u
15 + 14u = -3 + 3u + -3u

Combine like terms: 3u + -3u = 0
15 + 14u = -3 + 0
15 + 14u = -3

Add '-15' to each side of the equation.
15 + -15 + 14u = -3 + -15

Combine like terms: 15 + -15 = 0
0 + 14u = -3 + -15
14u = -3 + -15

Combine like terms: -3 + -15 = -18
14u = -18

Divide each side by '14'.
u = -1.285714286

Simplifying
u = -1.285714286

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