3-4n=20

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Solution for 3-4n=20 equation: 


Simplifying
3 + -4n = 20

Solving
3 + -4n = 20

Solving for variable 'n'.

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

Add '-3' to each side of the equation.
3 + -3 + -4n = 20 + -3

Combine like terms: 3 + -3 = 0
0 + -4n = 20 + -3
-4n = 20 + -3

Combine like terms: 20 + -3 = 17
-4n = 17

Divide each side by '-4'.
n = -4.25

Simplifying
n = -4.25

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