4(3-5n)-7(5-4n)=0

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Solution for 4(3-5n)-7(5-4n)=0 equation:


Simplifying
4(3 + -5n) + -7(5 + -4n) = 0
(3 * 4 + -5n * 4) + -7(5 + -4n) = 0
(12 + -20n) + -7(5 + -4n) = 0
12 + -20n + (5 * -7 + -4n * -7) = 0
12 + -20n + (-35 + 28n) = 0

Reorder the terms:
12 + -35 + -20n + 28n = 0

Combine like terms: 12 + -35 = -23
-23 + -20n + 28n = 0

Combine like terms: -20n + 28n = 8n
-23 + 8n = 0

Solving
-23 + 8n = 0

Solving for variable 'n'.

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

Add '23' to each side of the equation.
-23 + 23 + 8n = 0 + 23

Combine like terms: -23 + 23 = 0
0 + 8n = 0 + 23
8n = 0 + 23

Combine like terms: 0 + 23 = 23
8n = 23

Divide each side by '8'.
n = 2.875

Simplifying
n = 2.875

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