-9-7n=-8n-(n-3)

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Solution for -9-7n=-8n-(n-3) equation:


Simplifying
-9 + -7n = -8n + -1(n + -3)

Reorder the terms:
-9 + -7n = -8n + -1(-3 + n)
-9 + -7n = -8n + (-3 * -1 + n * -1)
-9 + -7n = -8n + (3 + -1n)

Reorder the terms:
-9 + -7n = 3 + -8n + -1n

Combine like terms: -8n + -1n = -9n
-9 + -7n = 3 + -9n

Solving
-9 + -7n = 3 + -9n

Solving for variable 'n'.

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

Add '9n' to each side of the equation.
-9 + -7n + 9n = 3 + -9n + 9n

Combine like terms: -7n + 9n = 2n
-9 + 2n = 3 + -9n + 9n

Combine like terms: -9n + 9n = 0
-9 + 2n = 3 + 0
-9 + 2n = 3

Add '9' to each side of the equation.
-9 + 9 + 2n = 3 + 9

Combine like terms: -9 + 9 = 0
0 + 2n = 3 + 9
2n = 3 + 9

Combine like terms: 3 + 9 = 12
2n = 12

Divide each side by '2'.
n = 6

Simplifying
n = 6

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