2u+4-u=3u-3+9

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Solution for 2u+4-u=3u-3+9 equation:


Simplifying
2u + 4 + -1u = 3u + -3 + 9

Reorder the terms:
4 + 2u + -1u = 3u + -3 + 9

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

Reorder the terms:
4 + 1u = -3 + 9 + 3u

Combine like terms: -3 + 9 = 6
4 + 1u = 6 + 3u

Solving
4 + 1u = 6 + 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.
4 + 1u + -3u = 6 + 3u + -3u

Combine like terms: 1u + -3u = -2u
4 + -2u = 6 + 3u + -3u

Combine like terms: 3u + -3u = 0
4 + -2u = 6 + 0
4 + -2u = 6

Add '-4' to each side of the equation.
4 + -4 + -2u = 6 + -4

Combine like terms: 4 + -4 = 0
0 + -2u = 6 + -4
-2u = 6 + -4

Combine like terms: 6 + -4 = 2
-2u = 2

Divide each side by '-2'.
u = -1

Simplifying
u = -1

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