8n+7-12n=4n+5-9

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Solution for 8n+7-12n=4n+5-9 equation:


Simplifying
8n + 7 + -12n = 4n + 5 + -9

Reorder the terms:
7 + 8n + -12n = 4n + 5 + -9

Combine like terms: 8n + -12n = -4n
7 + -4n = 4n + 5 + -9

Reorder the terms:
7 + -4n = 5 + -9 + 4n

Combine like terms: 5 + -9 = -4
7 + -4n = -4 + 4n

Solving
7 + -4n = -4 + 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.
7 + -4n + -4n = -4 + 4n + -4n

Combine like terms: -4n + -4n = -8n
7 + -8n = -4 + 4n + -4n

Combine like terms: 4n + -4n = 0
7 + -8n = -4 + 0
7 + -8n = -4

Add '-7' to each side of the equation.
7 + -7 + -8n = -4 + -7

Combine like terms: 7 + -7 = 0
0 + -8n = -4 + -7
-8n = -4 + -7

Combine like terms: -4 + -7 = -11
-8n = -11

Divide each side by '-8'.
n = 1.375

Simplifying
n = 1.375

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