9=5u-1

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Solution for 9=5u-1 equation:


Simplifying
9 = 5u + -1

Reorder the terms:
9 = -1 + 5u

Solving
9 = -1 + 5u

Solving for variable 'u'.

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

Add '-5u' to each side of the equation.
9 + -5u = -1 + 5u + -5u

Combine like terms: 5u + -5u = 0
9 + -5u = -1 + 0
9 + -5u = -1

Add '-9' to each side of the equation.
9 + -9 + -5u = -1 + -9

Combine like terms: 9 + -9 = 0
0 + -5u = -1 + -9
-5u = -1 + -9

Combine like terms: -1 + -9 = -10
-5u = -10

Divide each side by '-5'.
u = 2

Simplifying
u = 2

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