10n+9=4n+8n-5

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Solution for 10n+9=4n+8n-5 equation:


Simplifying
10n + 9 = 4n + 8n + -5

Reorder the terms:
9 + 10n = 4n + 8n + -5

Reorder the terms:
9 + 10n = -5 + 4n + 8n

Combine like terms: 4n + 8n = 12n
9 + 10n = -5 + 12n

Solving
9 + 10n = -5 + 12n

Solving for variable 'n'.

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

Add '-12n' to each side of the equation.
9 + 10n + -12n = -5 + 12n + -12n

Combine like terms: 10n + -12n = -2n
9 + -2n = -5 + 12n + -12n

Combine like terms: 12n + -12n = 0
9 + -2n = -5 + 0
9 + -2n = -5

Add '-9' to each side of the equation.
9 + -9 + -2n = -5 + -9

Combine like terms: 9 + -9 = 0
0 + -2n = -5 + -9
-2n = -5 + -9

Combine like terms: -5 + -9 = -14
-2n = -14

Divide each side by '-2'.
n = 7

Simplifying
n = 7

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