84=7(n-7)

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Solution for 84=7(n-7) equation:


Simplifying
84 = 7(n + -7)

Reorder the terms:
84 = 7(-7 + n)
84 = (-7 * 7 + n * 7)
84 = (-49 + 7n)

Solving
84 = -49 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
84 + -7n = -49 + 7n + -7n

Combine like terms: 7n + -7n = 0
84 + -7n = -49 + 0
84 + -7n = -49

Add '-84' to each side of the equation.
84 + -84 + -7n = -49 + -84

Combine like terms: 84 + -84 = 0
0 + -7n = -49 + -84
-7n = -49 + -84

Combine like terms: -49 + -84 = -133
-7n = -133

Divide each side by '-7'.
n = 19

Simplifying
n = 19

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