21=5(2n-6)

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Solution for 21=5(2n-6) equation:


Simplifying
21 = 5(2n + -6)

Reorder the terms:
21 = 5(-6 + 2n)
21 = (-6 * 5 + 2n * 5)
21 = (-30 + 10n)

Solving
21 = -30 + 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 + -10n = -30 + 10n + -10n

Combine like terms: 10n + -10n = 0
21 + -10n = -30 + 0
21 + -10n = -30

Add '-21' to each side of the equation.
21 + -21 + -10n = -30 + -21

Combine like terms: 21 + -21 = 0
0 + -10n = -30 + -21
-10n = -30 + -21

Combine like terms: -30 + -21 = -51
-10n = -51

Divide each side by '-10'.
n = 5.1

Simplifying
n = 5.1

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