-91=1-4(4n-5)

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Solution for -91=1-4(4n-5) equation:


Simplifying
-91 = 1 + -4(4n + -5)

Reorder the terms:
-91 = 1 + -4(-5 + 4n)
-91 = 1 + (-5 * -4 + 4n * -4)
-91 = 1 + (20 + -16n)

Combine like terms: 1 + 20 = 21
-91 = 21 + -16n

Solving
-91 = 21 + -16n

Solving for variable 'n'.

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

Add '16n' to each side of the equation.
-91 + 16n = 21 + -16n + 16n

Combine like terms: -16n + 16n = 0
-91 + 16n = 21 + 0
-91 + 16n = 21

Add '91' to each side of the equation.
-91 + 91 + 16n = 21 + 91

Combine like terms: -91 + 91 = 0
0 + 16n = 21 + 91
16n = 21 + 91

Combine like terms: 21 + 91 = 112
16n = 112

Divide each side by '16'.
n = 7

Simplifying
n = 7

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