-21=-5(5n-6)-1

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Solution for -21=-5(5n-6)-1 equation:


Simplifying
-21 = -5(5n + -6) + -1

Reorder the terms:
-21 = -5(-6 + 5n) + -1
-21 = (-6 * -5 + 5n * -5) + -1
-21 = (30 + -25n) + -1

Reorder the terms:
-21 = 30 + -1 + -25n

Combine like terms: 30 + -1 = 29
-21 = 29 + -25n

Solving
-21 = 29 + -25n

Solving for variable 'n'.

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

Add '25n' to each side of the equation.
-21 + 25n = 29 + -25n + 25n

Combine like terms: -25n + 25n = 0
-21 + 25n = 29 + 0
-21 + 25n = 29

Add '21' to each side of the equation.
-21 + 21 + 25n = 29 + 21

Combine like terms: -21 + 21 = 0
0 + 25n = 29 + 21
25n = 29 + 21

Combine like terms: 29 + 21 = 50
25n = 50

Divide each side by '25'.
n = 2

Simplifying
n = 2

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