6u-2u-u+9u+3=75

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Solution for 6u-2u-u+9u+3=75 equation:


Simplifying
6u + -2u + -1u + 9u + 3 = 75

Reorder the terms:
3 + 6u + -2u + -1u + 9u = 75

Combine like terms: 6u + -2u = 4u
3 + 4u + -1u + 9u = 75

Combine like terms: 4u + -1u = 3u
3 + 3u + 9u = 75

Combine like terms: 3u + 9u = 12u
3 + 12u = 75

Solving
3 + 12u = 75

Solving for variable 'u'.

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

Add '-3' to each side of the equation.
3 + -3 + 12u = 75 + -3

Combine like terms: 3 + -3 = 0
0 + 12u = 75 + -3
12u = 75 + -3

Combine like terms: 75 + -3 = 72
12u = 72

Divide each side by '12'.
u = 6

Simplifying
u = 6

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