4(n+9)=20

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Solution for 4(n+9)=20 equation: 


Simplifying
4(n + 9) = 20

Reorder the terms:
4(9 + n) = 20
(9 * 4 + n * 4) = 20
(36 + 4n) = 20

Solving
36 + 4n = 20

Solving for variable 'n'.

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

Add '-36' to each side of the equation.
36 + -36 + 4n = 20 + -36

Combine like terms: 36 + -36 = 0
0 + 4n = 20 + -36
4n = 20 + -36

Combine like terms: 20 + -36 = -16
4n = -16

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

Simplifying
n = -4

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