(n-9)*5=20

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Solution for (n-9)*5=20 equation:


Simplifying
(n + -9) * 5 = 20

Reorder the terms:
(-9 + n) * 5 = 20

Reorder the terms for easier multiplication:
5(-9 + n) = 20
(-9 * 5 + n * 5) = 20
(-45 + 5n) = 20

Solving
-45 + 5n = 20

Solving for variable 'n'.

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

Add '45' to each side of the equation.
-45 + 45 + 5n = 20 + 45

Combine like terms: -45 + 45 = 0
0 + 5n = 20 + 45
5n = 20 + 45

Combine like terms: 20 + 45 = 65
5n = 65

Divide each side by '5'.
n = 13

Simplifying
n = 13

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