9=-7n+4n

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Solution for 9=-7n+4n equation:


Simplifying
9 = -7n + 4n

Combine like terms: -7n + 4n = -3n
9 = -3n

Solving
9 = -3n

Solving for variable 'n'.

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

Add '3n' to each side of the equation.
9 + 3n = -3n + 3n

Combine like terms: -3n + 3n = 0
9 + 3n = 0

Add '-9' to each side of the equation.
9 + -9 + 3n = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 3n = 0 + -9
3n = 0 + -9

Combine like terms: 0 + -9 = -9
3n = -9

Divide each side by '3'.
n = -3

Simplifying
n = -3

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