84=78+n

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Solution for 84=78+n equation: 


Simplifying
84 = 78 + n

Solving
84 = 78 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
84 + -1n = 78 + n + -1n

Combine like terms: n + -1n = 0
84 + -1n = 78 + 0
84 + -1n = 78

Add '-84' to each side of the equation.
84 + -84 + -1n = 78 + -84

Combine like terms: 84 + -84 = 0
0 + -1n = 78 + -84
-1n = 78 + -84

Combine like terms: 78 + -84 = -6
-1n = -6

Divide each side by '-1'.
n = 6

Simplifying
n = 6

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