(5n+4)+(4n+5)=

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


Simplifying
(5n + 4) + (4n + 5) = 0

Reorder the terms:
(4 + 5n) + (4n + 5) = 0

Remove parenthesis around (4 + 5n)
4 + 5n + (4n + 5) = 0

Reorder the terms:
4 + 5n + (5 + 4n) = 0

Remove parenthesis around (5 + 4n)
4 + 5n + 5 + 4n = 0

Reorder the terms:
4 + 5 + 5n + 4n = 0

Combine like terms: 4 + 5 = 9
9 + 5n + 4n = 0

Combine like terms: 5n + 4n = 9n
9 + 9n = 0

Solving
9 + 9n = 0

Solving for variable 'n'.

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

Add '-9' to each side of the equation.
9 + -9 + 9n = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 9n = 0 + -9
9n = 0 + -9

Combine like terms: 0 + -9 = -9
9n = -9

Divide each side by '9'.
n = -1

Simplifying
n = -1

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