7n-n=-9(-n+7)-(7+10n)

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Solution for 7n-n=-9(-n+7)-(7+10n) equation:


Simplifying
7n + -1n = -9(-1n + 7) + -1(7 + 10n)

Combine like terms: 7n + -1n = 6n
6n = -9(-1n + 7) + -1(7 + 10n)

Reorder the terms:
6n = -9(7 + -1n) + -1(7 + 10n)
6n = (7 * -9 + -1n * -9) + -1(7 + 10n)
6n = (-63 + 9n) + -1(7 + 10n)
6n = -63 + 9n + (7 * -1 + 10n * -1)
6n = -63 + 9n + (-7 + -10n)

Reorder the terms:
6n = -63 + -7 + 9n + -10n

Combine like terms: -63 + -7 = -70
6n = -70 + 9n + -10n

Combine like terms: 9n + -10n = -1n
6n = -70 + -1n

Solving
6n = -70 + -1n

Solving for variable 'n'.

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

Add 'n' to each side of the equation.
6n + n = -70 + -1n + n

Combine like terms: 6n + n = 7n
7n = -70 + -1n + n

Combine like terms: -1n + n = 0
7n = -70 + 0
7n = -70

Divide each side by '7'.
n = -10

Simplifying
n = -10

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