5n+21=5(3n-5)+6

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Solution for 5n+21=5(3n-5)+6 equation:


Simplifying
5n + 21 = 5(3n + -5) + 6

Reorder the terms:
21 + 5n = 5(3n + -5) + 6

Reorder the terms:
21 + 5n = 5(-5 + 3n) + 6
21 + 5n = (-5 * 5 + 3n * 5) + 6
21 + 5n = (-25 + 15n) + 6

Reorder the terms:
21 + 5n = -25 + 6 + 15n

Combine like terms: -25 + 6 = -19
21 + 5n = -19 + 15n

Solving
21 + 5n = -19 + 15n

Solving for variable 'n'.

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

Add '-15n' to each side of the equation.
21 + 5n + -15n = -19 + 15n + -15n

Combine like terms: 5n + -15n = -10n
21 + -10n = -19 + 15n + -15n

Combine like terms: 15n + -15n = 0
21 + -10n = -19 + 0
21 + -10n = -19

Add '-21' to each side of the equation.
21 + -21 + -10n = -19 + -21

Combine like terms: 21 + -21 = 0
0 + -10n = -19 + -21
-10n = -19 + -21

Combine like terms: -19 + -21 = -40
-10n = -40

Divide each side by '-10'.
n = 4

Simplifying
n = 4

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