-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 = 72
-9u = 72

Divide each side by '-9'.
u = -8

Simplifying
u = -8

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