5(-2n+1)+3(4n-6)=-21

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Solution for 5(-2n+1)+3(4n-6)=-21 equation:


Simplifying
5(-2n + 1) + 3(4n + -6) = -21

Reorder the terms:
5(1 + -2n) + 3(4n + -6) = -21
(1 * 5 + -2n * 5) + 3(4n + -6) = -21
(5 + -10n) + 3(4n + -6) = -21

Reorder the terms:
5 + -10n + 3(-6 + 4n) = -21
5 + -10n + (-6 * 3 + 4n * 3) = -21
5 + -10n + (-18 + 12n) = -21

Reorder the terms:
5 + -18 + -10n + 12n = -21

Combine like terms: 5 + -18 = -13
-13 + -10n + 12n = -21

Combine like terms: -10n + 12n = 2n
-13 + 2n = -21

Solving
-13 + 2n = -21

Solving for variable 'n'.

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

Add '13' to each side of the equation.
-13 + 13 + 2n = -21 + 13

Combine like terms: -13 + 13 = 0
0 + 2n = -21 + 13
2n = -21 + 13

Combine like terms: -21 + 13 = -8
2n = -8

Divide each side by '2'.
n = -4

Simplifying
n = -4

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