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

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


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

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

Solving
-21 + 6n = 15 + -3n

Solving for variable 'n'.

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

Add '3n' to each side of the equation.
-21 + 6n + 3n = 15 + -3n + 3n

Combine like terms: 6n + 3n = 9n
-21 + 9n = 15 + -3n + 3n

Combine like terms: -3n + 3n = 0
-21 + 9n = 15 + 0
-21 + 9n = 15

Add '21' to each side of the equation.
-21 + 21 + 9n = 15 + 21

Combine like terms: -21 + 21 = 0
0 + 9n = 15 + 21
9n = 15 + 21

Combine like terms: 15 + 21 = 36
9n = 36

Divide each side by '9'.
n = 4

Simplifying
n = 4

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