-9=-2n-10

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Solution for -9=-2n-10 equation:


Simplifying
-9 = -2n + -10

Reorder the terms:
-9 = -10 + -2n

Solving
-9 = -10 + -2n

Solving for variable 'n'.

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

Add '2n' to each side of the equation.
-9 + 2n = -10 + -2n + 2n

Combine like terms: -2n + 2n = 0
-9 + 2n = -10 + 0
-9 + 2n = -10

Add '9' to each side of the equation.
-9 + 9 + 2n = -10 + 9

Combine like terms: -9 + 9 = 0
0 + 2n = -10 + 9
2n = -10 + 9

Combine like terms: -10 + 9 = -1
2n = -1

Divide each side by '2'.
n = -0.5

Simplifying
n = -0.5

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