63=3(7n-7)

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Solution for 63=3(7n-7) equation:


Simplifying
63 = 3(7n + -7)

Reorder the terms:
63 = 3(-7 + 7n)
63 = (-7 * 3 + 7n * 3)
63 = (-21 + 21n)

Solving
63 = -21 + 21n

Solving for variable 'n'.

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

Add '-21n' to each side of the equation.
63 + -21n = -21 + 21n + -21n

Combine like terms: 21n + -21n = 0
63 + -21n = -21 + 0
63 + -21n = -21

Add '-63' to each side of the equation.
63 + -63 + -21n = -21 + -63

Combine like terms: 63 + -63 = 0
0 + -21n = -21 + -63
-21n = -21 + -63

Combine like terms: -21 + -63 = -84
-21n = -84

Divide each side by '-21'.
n = 4

Simplifying
n = 4

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