20=4n+.5-2n

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Solution for 20=4n+.5-2n equation:


Simplifying
20 = 4n + 0.5 + -2n

Reorder the terms:
20 = 0.5 + 4n + -2n

Combine like terms: 4n + -2n = 2n
20 = 0.5 + 2n

Solving
20 = 0.5 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
20 + -2n = 0.5 + 2n + -2n

Combine like terms: 2n + -2n = 0
20 + -2n = 0.5 + 0
20 + -2n = 0.5

Add '-20' to each side of the equation.
20 + -20 + -2n = 0.5 + -20

Combine like terms: 20 + -20 = 0
0 + -2n = 0.5 + -20
-2n = 0.5 + -20

Combine like terms: 0.5 + -20 = -19.5
-2n = -19.5

Divide each side by '-2'.
n = 9.75

Simplifying
n = 9.75

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