9=(-5)-2n-5n

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Solution for 9=(-5)-2n-5n equation:


Simplifying
9 = (-5) + -2n + -5n
9 = -5 + -2n + -5n

Combine like terms: -2n + -5n = -7n
9 = -5 + -7n

Solving
9 = -5 + -7n

Solving for variable 'n'.

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

Add '7n' to each side of the equation.
9 + 7n = -5 + -7n + 7n

Combine like terms: -7n + 7n = 0
9 + 7n = -5 + 0
9 + 7n = -5

Add '-9' to each side of the equation.
9 + -9 + 7n = -5 + -9

Combine like terms: 9 + -9 = 0
0 + 7n = -5 + -9
7n = -5 + -9

Combine like terms: -5 + -9 = -14
7n = -14

Divide each side by '7'.
n = -2

Simplifying
n = -2

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