8+11n-7=9n+21-2n

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Solution for 8+11n-7=9n+21-2n equation:


Simplifying
8 + 11n + -7 = 9n + 21 + -2n

Reorder the terms:
8 + -7 + 11n = 9n + 21 + -2n

Combine like terms: 8 + -7 = 1
1 + 11n = 9n + 21 + -2n

Reorder the terms:
1 + 11n = 21 + 9n + -2n

Combine like terms: 9n + -2n = 7n
1 + 11n = 21 + 7n

Solving
1 + 11n = 21 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
1 + 11n + -7n = 21 + 7n + -7n

Combine like terms: 11n + -7n = 4n
1 + 4n = 21 + 7n + -7n

Combine like terms: 7n + -7n = 0
1 + 4n = 21 + 0
1 + 4n = 21

Add '-1' to each side of the equation.
1 + -1 + 4n = 21 + -1

Combine like terms: 1 + -1 = 0
0 + 4n = 21 + -1
4n = 21 + -1

Combine like terms: 21 + -1 = 20
4n = 20

Divide each side by '4'.
n = 5

Simplifying
n = 5

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