4n+8=9n-9

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Solution for 4n+8=9n-9 equation:


Simplifying
4n + 8 = 9n + -9

Reorder the terms:
8 + 4n = 9n + -9

Reorder the terms:
8 + 4n = -9 + 9n

Solving
8 + 4n = -9 + 9n

Solving for variable 'n'.

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

Add '-9n' to each side of the equation.
8 + 4n + -9n = -9 + 9n + -9n

Combine like terms: 4n + -9n = -5n
8 + -5n = -9 + 9n + -9n

Combine like terms: 9n + -9n = 0
8 + -5n = -9 + 0
8 + -5n = -9

Add '-8' to each side of the equation.
8 + -8 + -5n = -9 + -8

Combine like terms: 8 + -8 = 0
0 + -5n = -9 + -8
-5n = -9 + -8

Combine like terms: -9 + -8 = -17
-5n = -17

Divide each side by '-5'.
n = 3.4

Simplifying
n = 3.4

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