-21-9n+2n=10n-20

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Solution for -21-9n+2n=10n-20 equation:


Simplifying
-21 + -9n + 2n = 10n + -20

Combine like terms: -9n + 2n = -7n
-21 + -7n = 10n + -20

Reorder the terms:
-21 + -7n = -20 + 10n

Solving
-21 + -7n = -20 + 10n

Solving for variable 'n'.

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

Add '-10n' to each side of the equation.
-21 + -7n + -10n = -20 + 10n + -10n

Combine like terms: -7n + -10n = -17n
-21 + -17n = -20 + 10n + -10n

Combine like terms: 10n + -10n = 0
-21 + -17n = -20 + 0
-21 + -17n = -20

Add '21' to each side of the equation.
-21 + 21 + -17n = -20 + 21

Combine like terms: -21 + 21 = 0
0 + -17n = -20 + 21
-17n = -20 + 21

Combine like terms: -20 + 21 = 1
-17n = 1

Divide each side by '-17'.
n = -0.05882352941

Simplifying
n = -0.05882352941

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