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

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


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

Reorder the terms:
5(1 + u) + -1u = 3(u + -1) + 7
(1 * 5 + u * 5) + -1u = 3(u + -1) + 7
(5 + 5u) + -1u = 3(u + -1) + 7

Combine like terms: 5u + -1u = 4u
5 + 4u = 3(u + -1) + 7

Reorder the terms:
5 + 4u = 3(-1 + u) + 7
5 + 4u = (-1 * 3 + u * 3) + 7
5 + 4u = (-3 + 3u) + 7

Reorder the terms:
5 + 4u = -3 + 7 + 3u

Combine like terms: -3 + 7 = 4
5 + 4u = 4 + 3u

Solving
5 + 4u = 4 + 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.
5 + 4u + -3u = 4 + 3u + -3u

Combine like terms: 4u + -3u = 1u
5 + 1u = 4 + 3u + -3u

Combine like terms: 3u + -3u = 0
5 + 1u = 4 + 0
5 + 1u = 4

Add '-5' to each side of the equation.
5 + -5 + 1u = 4 + -5

Combine like terms: 5 + -5 = 0
0 + 1u = 4 + -5
1u = 4 + -5

Combine like terms: 4 + -5 = -1
1u = -1

Divide each side by '1'.
u = -1

Simplifying
u = -1

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