2n+21=11n-87

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Solution for 2n+21=11n-87 equation:


Simplifying
2n + 21 = 11n + -87

Reorder the terms:
21 + 2n = 11n + -87

Reorder the terms:
21 + 2n = -87 + 11n

Solving
21 + 2n = -87 + 11n

Solving for variable 'n'.

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

Add '-11n' to each side of the equation.
21 + 2n + -11n = -87 + 11n + -11n

Combine like terms: 2n + -11n = -9n
21 + -9n = -87 + 11n + -11n

Combine like terms: 11n + -11n = 0
21 + -9n = -87 + 0
21 + -9n = -87

Add '-21' to each side of the equation.
21 + -21 + -9n = -87 + -21

Combine like terms: 21 + -21 = 0
0 + -9n = -87 + -21
-9n = -87 + -21

Combine like terms: -87 + -21 = -108
-9n = -108

Divide each side by '-9'.
n = 12

Simplifying
n = 12

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