-n^2-24n+144+n^2=90

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Solution for -n^2-24n+144+n^2=90 equation:


Simplifying
-1n2 + -24n + 144 + n2 = 90

Reorder the terms:
144 + -24n + -1n2 + n2 = 90

Combine like terms: -1n2 + n2 = 0
144 + -24n + 0 = 90
144 + -24n = 90

Solving
144 + -24n = 90

Solving for variable 'n'.

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

Add '-144' to each side of the equation.
144 + -144 + -24n = 90 + -144

Combine like terms: 144 + -144 = 0
0 + -24n = 90 + -144
-24n = 90 + -144

Combine like terms: 90 + -144 = -54
-24n = -54

Divide each side by '-24'.
n = 2.25

Simplifying
n = 2.25

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