91=3u+6u-19

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Solution for 91=3u+6u-19 equation:


Simplifying
91 = 3u + 6u + -19

Reorder the terms:
91 = -19 + 3u + 6u

Combine like terms: 3u + 6u = 9u
91 = -19 + 9u

Solving
91 = -19 + 9u

Solving for variable 'u'.

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

Add '-9u' to each side of the equation.
91 + -9u = -19 + 9u + -9u

Combine like terms: 9u + -9u = 0
91 + -9u = -19 + 0
91 + -9u = -19

Add '-91' to each side of the equation.
91 + -91 + -9u = -19 + -91

Combine like terms: 91 + -91 = 0
0 + -9u = -19 + -91
-9u = -19 + -91

Combine like terms: -19 + -91 = -110
-9u = -110

Divide each side by '-9'.
u = 12.22222222

Simplifying
u = 12.22222222

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