99=n+90

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Solution for 99=n+90 equation:


Simplifying
99 = n + 90

Reorder the terms:
99 = 90 + n

Solving
99 = 90 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
99 + -1n = 90 + n + -1n

Combine like terms: n + -1n = 0
99 + -1n = 90 + 0
99 + -1n = 90

Add '-99' to each side of the equation.
99 + -99 + -1n = 90 + -99

Combine like terms: 99 + -99 = 0
0 + -1n = 90 + -99
-1n = 90 + -99

Combine like terms: 90 + -99 = -9
-1n = -9

Divide each side by '-1'.
n = 9

Simplifying
n = 9

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