3u+4=2u-9

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


Simplifying
3u + 4 = 2u + -9

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

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

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

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

Combine like terms: 2u + -2u = 0
4 + 1u = -9 + 0
4 + 1u = -9

Add '-4' to each side of the equation.
4 + -4 + 1u = -9 + -4

Combine like terms: 4 + -4 = 0
0 + 1u = -9 + -4
1u = -9 + -4

Combine like terms: -9 + -4 = -13
1u = -13

Divide each side by '1'.
u = -13

Simplifying
u = -13

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