10(n+7)+9=9n

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


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

Reorder the terms:
10(7 + n) + 9 = 9n
(7 * 10 + n * 10) + 9 = 9n
(70 + 10n) + 9 = 9n

Reorder the terms:
70 + 9 + 10n = 9n

Combine like terms: 70 + 9 = 79
79 + 10n = 9n

Solving
79 + 10n = 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.
79 + 10n + -9n = 9n + -9n

Combine like terms: 10n + -9n = 1n
79 + 1n = 9n + -9n

Combine like terms: 9n + -9n = 0
79 + 1n = 0

Add '-79' to each side of the equation.
79 + -79 + 1n = 0 + -79

Combine like terms: 79 + -79 = 0
0 + 1n = 0 + -79
1n = 0 + -79

Combine like terms: 0 + -79 = -79
1n = -79

Divide each side by '1'.
n = -79

Simplifying
n = -79

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