-3(5n-7)=-84

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Solution for -3(5n-7)=-84 equation:


Simplifying
-3(5n + -7) = -84

Reorder the terms:
-3(-7 + 5n) = -84
(-7 * -3 + 5n * -3) = -84
(21 + -15n) = -84

Solving
21 + -15n = -84

Solving for variable 'n'.

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

Add '-21' to each side of the equation.
21 + -21 + -15n = -84 + -21

Combine like terms: 21 + -21 = 0
0 + -15n = -84 + -21
-15n = -84 + -21

Combine like terms: -84 + -21 = -105
-15n = -105

Divide each side by '-15'.
n = 7

Simplifying
n = 7

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