4u+8-u=2u-2+9

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Solution for 4u+8-u=2u-2+9 equation:


Simplifying
4u + 8 + -1u = 2u + -2 + 9

Reorder the terms:
8 + 4u + -1u = 2u + -2 + 9

Combine like terms: 4u + -1u = 3u
8 + 3u = 2u + -2 + 9

Reorder the terms:
8 + 3u = -2 + 9 + 2u

Combine like terms: -2 + 9 = 7
8 + 3u = 7 + 2u

Solving
8 + 3u = 7 + 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.
8 + 3u + -2u = 7 + 2u + -2u

Combine like terms: 3u + -2u = 1u
8 + 1u = 7 + 2u + -2u

Combine like terms: 2u + -2u = 0
8 + 1u = 7 + 0
8 + 1u = 7

Add '-8' to each side of the equation.
8 + -8 + 1u = 7 + -8

Combine like terms: 8 + -8 = 0
0 + 1u = 7 + -8
1u = 7 + -8

Combine like terms: 7 + -8 = -1
1u = -1

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

Simplifying
u = -1

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