21-4(2n-13)=1

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Solution for 21-4(2n-13)=1 equation: 


Simplifying
21 + -4(2n + -13) = 1

Reorder the terms:
21 + -4(-13 + 2n) = 1
21 + (-13 * -4 + 2n * -4) = 1
21 + (52 + -8n) = 1

Combine like terms: 21 + 52 = 73
73 + -8n = 1

Solving
73 + -8n = 1

Solving for variable 'n'.

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

Add '-73' to each side of the equation.
73 + -73 + -8n = 1 + -73

Combine like terms: 73 + -73 = 0
0 + -8n = 1 + -73
-8n = 1 + -73

Combine like terms: 1 + -73 = -72
-8n = -72

Divide each side by '-8'.
n = 9

Simplifying
n = 9

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