-5(5n+3)+7n=129

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Solution for -5(5n+3)+7n=129 equation:


Simplifying
-5(5n + 3) + 7n = 129

Reorder the terms:
-5(3 + 5n) + 7n = 129
(3 * -5 + 5n * -5) + 7n = 129
(-15 + -25n) + 7n = 129

Combine like terms: -25n + 7n = -18n
-15 + -18n = 129

Solving
-15 + -18n = 129

Solving for variable 'n'.

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

Add '15' to each side of the equation.
-15 + 15 + -18n = 129 + 15

Combine like terms: -15 + 15 = 0
0 + -18n = 129 + 15
-18n = 129 + 15

Combine like terms: 129 + 15 = 144
-18n = 144

Divide each side by '-18'.
n = -8

Simplifying
n = -8

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