7n-7n=9(6+3n)-6(5n+5)

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Solution for 7n-7n=9(6+3n)-6(5n+5) equation:


Simplifying
7n + -7n = 9(6 + 3n) + -6(5n + 5)

Combine like terms: 7n + -7n = 0
0 = 9(6 + 3n) + -6(5n + 5)
0 = (6 * 9 + 3n * 9) + -6(5n + 5)
0 = (54 + 27n) + -6(5n + 5)

Reorder the terms:
0 = 54 + 27n + -6(5 + 5n)
0 = 54 + 27n + (5 * -6 + 5n * -6)
0 = 54 + 27n + (-30 + -30n)

Reorder the terms:
0 = 54 + -30 + 27n + -30n

Combine like terms: 54 + -30 = 24
0 = 24 + 27n + -30n

Combine like terms: 27n + -30n = -3n
0 = 24 + -3n

Solving
0 = 24 + -3n

Solving for variable 'n'.

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

Add '3n' to each side of the equation.
0 + 3n = 24 + -3n + 3n
Remove the zero:
3n = 24 + -3n + 3n

Combine like terms: -3n + 3n = 0
3n = 24 + 0
3n = 24

Divide each side by '3'.
n = 8

Simplifying
n = 8

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