-5(-5n+4)-4(5n-4)=16

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Solution for -5(-5n+4)-4(5n-4)=16 equation:


Simplifying
-5(-5n + 4) + -4(5n + -4) = 16

Reorder the terms:
-5(4 + -5n) + -4(5n + -4) = 16
(4 * -5 + -5n * -5) + -4(5n + -4) = 16
(-20 + 25n) + -4(5n + -4) = 16

Reorder the terms:
-20 + 25n + -4(-4 + 5n) = 16
-20 + 25n + (-4 * -4 + 5n * -4) = 16
-20 + 25n + (16 + -20n) = 16

Reorder the terms:
-20 + 16 + 25n + -20n = 16

Combine like terms: -20 + 16 = -4
-4 + 25n + -20n = 16

Combine like terms: 25n + -20n = 5n
-4 + 5n = 16

Solving
-4 + 5n = 16

Solving for variable 'n'.

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

Add '4' to each side of the equation.
-4 + 4 + 5n = 16 + 4

Combine like terms: -4 + 4 = 0
0 + 5n = 16 + 4
5n = 16 + 4

Combine like terms: 16 + 4 = 20
5n = 20

Divide each side by '5'.
n = 4

Simplifying
n = 4

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