4(n+9)-(8n-9)=-5n

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Solution for 4(n+9)-(8n-9)=-5n equation:


Simplifying
4(n + 9) + -1(8n + -9) = -5n

Reorder the terms:
4(9 + n) + -1(8n + -9) = -5n
(9 * 4 + n * 4) + -1(8n + -9) = -5n
(36 + 4n) + -1(8n + -9) = -5n

Reorder the terms:
36 + 4n + -1(-9 + 8n) = -5n
36 + 4n + (-9 * -1 + 8n * -1) = -5n
36 + 4n + (9 + -8n) = -5n

Reorder the terms:
36 + 9 + 4n + -8n = -5n

Combine like terms: 36 + 9 = 45
45 + 4n + -8n = -5n

Combine like terms: 4n + -8n = -4n
45 + -4n = -5n

Solving
45 + -4n = -5n

Solving for variable 'n'.

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

Add '5n' to each side of the equation.
45 + -4n + 5n = -5n + 5n

Combine like terms: -4n + 5n = 1n
45 + 1n = -5n + 5n

Combine like terms: -5n + 5n = 0
45 + 1n = 0

Add '-45' to each side of the equation.
45 + -45 + 1n = 0 + -45

Combine like terms: 45 + -45 = 0
0 + 1n = 0 + -45
1n = 0 + -45

Combine like terms: 0 + -45 = -45
1n = -45

Divide each side by '1'.
n = -45

Simplifying
n = -45

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