2(u+1)-u=4(u-1)+9

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Solution for 2(u+1)-u=4(u-1)+9 equation: 


Simplifying
2(u + 1) + -1u = 4(u + -1) + 9

Reorder the terms:
2(1 + u) + -1u = 4(u + -1) + 9
(1 * 2 + u * 2) + -1u = 4(u + -1) + 9
(2 + 2u) + -1u = 4(u + -1) + 9

Combine like terms: 2u + -1u = 1u
2 + 1u = 4(u + -1) + 9

Reorder the terms:
2 + 1u = 4(-1 + u) + 9
2 + 1u = (-1 * 4 + u * 4) + 9
2 + 1u = (-4 + 4u) + 9

Reorder the terms:
2 + 1u = -4 + 9 + 4u

Combine like terms: -4 + 9 = 5
2 + 1u = 5 + 4u

Solving
2 + 1u = 5 + 4u

Solving for variable 'u'.

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

Add '-4u' to each side of the equation.
2 + 1u + -4u = 5 + 4u + -4u

Combine like terms: 1u + -4u = -3u
2 + -3u = 5 + 4u + -4u

Combine like terms: 4u + -4u = 0
2 + -3u = 5 + 0
2 + -3u = 5

Add '-2' to each side of the equation.
2 + -2 + -3u = 5 + -2

Combine like terms: 2 + -2 = 0
0 + -3u = 5 + -2
-3u = 5 + -2

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

Divide each side by '-3'.
u = -1

Simplifying
u = -1

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