-57+6n+21-4n=0

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Solution for -57+6n+21-4n=0 equation:


Simplifying
-57 + 6n + 21 + -4n = 0

Reorder the terms:
-57 + 21 + 6n + -4n = 0

Combine like terms: -57 + 21 = -36
-36 + 6n + -4n = 0

Combine like terms: 6n + -4n = 2n
-36 + 2n = 0

Solving
-36 + 2n = 0

Solving for variable 'n'.

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

Add '36' to each side of the equation.
-36 + 36 + 2n = 0 + 36

Combine like terms: -36 + 36 = 0
0 + 2n = 0 + 36
2n = 0 + 36

Combine like terms: 0 + 36 = 36
2n = 36

Divide each side by '2'.
n = 18

Simplifying
n = 18

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