3n-7(n-8)=84

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Solution for 3n-7(n-8)=84 equation:


Simplifying
3n + -7(n + -8) = 84

Reorder the terms:
3n + -7(-8 + n) = 84
3n + (-8 * -7 + n * -7) = 84
3n + (56 + -7n) = 84

Reorder the terms:
56 + 3n + -7n = 84

Combine like terms: 3n + -7n = -4n
56 + -4n = 84

Solving
56 + -4n = 84

Solving for variable 'n'.

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

Add '-56' to each side of the equation.
56 + -56 + -4n = 84 + -56

Combine like terms: 56 + -56 = 0
0 + -4n = 84 + -56
-4n = 84 + -56

Combine like terms: 84 + -56 = 28
-4n = 28

Divide each side by '-4'.
n = -7

Simplifying
n = -7

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