9(n-1)=-18

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Solution for 9(n-1)=-18 equation: 


Simplifying
9(n + -1) = -18

Reorder the terms:
9(-1 + n) = -18
(-1 * 9 + n * 9) = -18
(-9 + 9n) = -18

Solving
-9 + 9n = -18

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 = -18 + 9

Combine like terms: -9 + 9 = 0
0 + 9n = -18 + 9
9n = -18 + 9

Combine like terms: -18 + 9 = -9
9n = -9

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

Simplifying
n = -1

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