8-9n=21n-17

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Solution for 8-9n=21n-17 equation:


Simplifying
8 + -9n = 21n + -17

Reorder the terms:
8 + -9n = -17 + 21n

Solving
8 + -9n = -17 + 21n

Solving for variable 'n'.

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

Add '-21n' to each side of the equation.
8 + -9n + -21n = -17 + 21n + -21n

Combine like terms: -9n + -21n = -30n
8 + -30n = -17 + 21n + -21n

Combine like terms: 21n + -21n = 0
8 + -30n = -17 + 0
8 + -30n = -17

Add '-8' to each side of the equation.
8 + -8 + -30n = -17 + -8

Combine like terms: 8 + -8 = 0
0 + -30n = -17 + -8
-30n = -17 + -8

Combine like terms: -17 + -8 = -25
-30n = -25

Divide each side by '-30'.
n = 0.8333333333

Simplifying
n = 0.8333333333

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