-3(8+7n)=-129

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Solution for -3(8+7n)=-129 equation: 


Simplifying
-3(8 + 7n) = -129
(8 * -3 + 7n * -3) = -129
(-24 + -21n) = -129

Solving
-24 + -21n = -129

Solving for variable 'n'.

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

Add '24' to each side of the equation.
-24 + 24 + -21n = -129 + 24

Combine like terms: -24 + 24 = 0
0 + -21n = -129 + 24
-21n = -129 + 24

Combine like terms: -129 + 24 = -105
-21n = -105

Divide each side by '-21'.
n = 5

Simplifying
n = 5

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