7=3(n-1)

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Solution for 7=3(n-1) equation: 


Simplifying
7 = 3(n + -1)

Reorder the terms:
7 = 3(-1 + n)
7 = (-1 * 3 + n * 3)
7 = (-3 + 3n)

Solving
7 = -3 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
7 + -3n = -3 + 3n + -3n

Combine like terms: 3n + -3n = 0
7 + -3n = -3 + 0
7 + -3n = -3

Add '-7' to each side of the equation.
7 + -7 + -3n = -3 + -7

Combine like terms: 7 + -7 = 0
0 + -3n = -3 + -7
-3n = -3 + -7

Combine like terms: -3 + -7 = -10
-3n = -10

Divide each side by '-3'.
n = 3.333333333

Simplifying
n = 3.333333333

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