4(20-n)=4

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Solution for 4(20-n)=4 equation: 


Simplifying
4(20 + -1n) = 4
(20 * 4 + -1n * 4) = 4
(80 + -4n) = 4

Solving
80 + -4n = 4

Solving for variable 'n'.

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

Add '-80' to each side of the equation.
80 + -80 + -4n = 4 + -80

Combine like terms: 80 + -80 = 0
0 + -4n = 4 + -80
-4n = 4 + -80

Combine like terms: 4 + -80 = -76
-4n = -76

Divide each side by '-4'.
n = 19

Simplifying
n = 19

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