91=4(4n-5)

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


Simplifying
91 = 4(4n + -5)

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

Solving
91 = -20 + 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 = -20 + 16n + -16n

Combine like terms: 16n + -16n = 0
91 + -16n = -20 + 0
91 + -16n = -20

Add '-91' to each side of the equation.
91 + -91 + -16n = -20 + -91

Combine like terms: 91 + -91 = 0
0 + -16n = -20 + -91
-16n = -20 + -91

Combine like terms: -20 + -91 = -111
-16n = -111

Divide each side by '-16'.
n = 6.9375

Simplifying
n = 6.9375

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