.75(8n-12)+n=5(n+2)

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Solution for .75(8n-12)+n=5(n+2) equation:


Simplifying
0.75(8n + -12) + n = 5(n + 2)

Reorder the terms:
0.75(-12 + 8n) + n = 5(n + 2)
(-12 * 0.75 + 8n * 0.75) + n = 5(n + 2)
(-9 + 6n) + n = 5(n + 2)

Combine like terms: 6n + n = 7n
-9 + 7n = 5(n + 2)

Reorder the terms:
-9 + 7n = 5(2 + n)
-9 + 7n = (2 * 5 + n * 5)
-9 + 7n = (10 + 5n)

Solving
-9 + 7n = 10 + 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
-9 + 7n + -5n = 10 + 5n + -5n

Combine like terms: 7n + -5n = 2n
-9 + 2n = 10 + 5n + -5n

Combine like terms: 5n + -5n = 0
-9 + 2n = 10 + 0
-9 + 2n = 10

Add '9' to each side of the equation.
-9 + 9 + 2n = 10 + 9

Combine like terms: -9 + 9 = 0
0 + 2n = 10 + 9
2n = 10 + 9

Combine like terms: 10 + 9 = 19
2n = 19

Divide each side by '2'.
n = 9.5

Simplifying
n = 9.5

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