-12(10n+7)+9(5n-6)=8+4n+12

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Solution for -12(10n+7)+9(5n-6)=8+4n+12 equation:


Simplifying
-12(10n + 7) + 9(5n + -6) = 8 + 4n + 12

Reorder the terms:
-12(7 + 10n) + 9(5n + -6) = 8 + 4n + 12
(7 * -12 + 10n * -12) + 9(5n + -6) = 8 + 4n + 12
(-84 + -120n) + 9(5n + -6) = 8 + 4n + 12

Reorder the terms:
-84 + -120n + 9(-6 + 5n) = 8 + 4n + 12
-84 + -120n + (-6 * 9 + 5n * 9) = 8 + 4n + 12
-84 + -120n + (-54 + 45n) = 8 + 4n + 12

Reorder the terms:
-84 + -54 + -120n + 45n = 8 + 4n + 12

Combine like terms: -84 + -54 = -138
-138 + -120n + 45n = 8 + 4n + 12

Combine like terms: -120n + 45n = -75n
-138 + -75n = 8 + 4n + 12

Reorder the terms:
-138 + -75n = 8 + 12 + 4n

Combine like terms: 8 + 12 = 20
-138 + -75n = 20 + 4n

Solving
-138 + -75n = 20 + 4n

Solving for variable 'n'.

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

Add '-4n' to each side of the equation.
-138 + -75n + -4n = 20 + 4n + -4n

Combine like terms: -75n + -4n = -79n
-138 + -79n = 20 + 4n + -4n

Combine like terms: 4n + -4n = 0
-138 + -79n = 20 + 0
-138 + -79n = 20

Add '138' to each side of the equation.
-138 + 138 + -79n = 20 + 138

Combine like terms: -138 + 138 = 0
0 + -79n = 20 + 138
-79n = 20 + 138

Combine like terms: 20 + 138 = 158
-79n = 158

Divide each side by '-79'.
n = -2

Simplifying
n = -2

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