-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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