5(5-4n)-3(6n+5)=-66

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Solution for 5(5-4n)-3(6n+5)=-66 equation:


Simplifying
5(5 + -4n) + -3(6n + 5) = -66
(5 * 5 + -4n * 5) + -3(6n + 5) = -66
(25 + -20n) + -3(6n + 5) = -66

Reorder the terms:
25 + -20n + -3(5 + 6n) = -66
25 + -20n + (5 * -3 + 6n * -3) = -66
25 + -20n + (-15 + -18n) = -66

Reorder the terms:
25 + -15 + -20n + -18n = -66

Combine like terms: 25 + -15 = 10
10 + -20n + -18n = -66

Combine like terms: -20n + -18n = -38n
10 + -38n = -66

Solving
10 + -38n = -66

Solving for variable 'n'.

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

Add '-10' to each side of the equation.
10 + -10 + -38n = -66 + -10

Combine like terms: 10 + -10 = 0
0 + -38n = -66 + -10
-38n = -66 + -10

Combine like terms: -66 + -10 = -76
-38n = -76

Divide each side by '-38'.
n = 2

Simplifying
n = 2

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