84=4+4(3n-1)

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Solution for 84=4+4(3n-1) equation:


Simplifying
84 = 4 + 4(3n + -1)

Reorder the terms:
84 = 4 + 4(-1 + 3n)
84 = 4 + (-1 * 4 + 3n * 4)
84 = 4 + (-4 + 12n)

Combine like terms: 4 + -4 = 0
84 = 0 + 12n
84 = 12n

Solving
84 = 12n

Solving for variable 'n'.

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

Add '-12n' to each side of the equation.
84 + -12n = 12n + -12n

Combine like terms: 12n + -12n = 0
84 + -12n = 0

Add '-84' to each side of the equation.
84 + -84 + -12n = 0 + -84

Combine like terms: 84 + -84 = 0
0 + -12n = 0 + -84
-12n = 0 + -84

Combine like terms: 0 + -84 = -84
-12n = -84

Divide each side by '-12'.
n = 7

Simplifying
n = 7

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