12(n+3)-(n-7)=12

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Solution for 12(n+3)-(n-7)=12 equation:


Simplifying
12(n + 3) + -1(n + -7) = 12

Reorder the terms:
12(3 + n) + -1(n + -7) = 12
(3 * 12 + n * 12) + -1(n + -7) = 12
(36 + 12n) + -1(n + -7) = 12

Reorder the terms:
36 + 12n + -1(-7 + n) = 12
36 + 12n + (-7 * -1 + n * -1) = 12
36 + 12n + (7 + -1n) = 12

Reorder the terms:
36 + 7 + 12n + -1n = 12

Combine like terms: 36 + 7 = 43
43 + 12n + -1n = 12

Combine like terms: 12n + -1n = 11n
43 + 11n = 12

Solving
43 + 11n = 12

Solving for variable 'n'.

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

Add '-43' to each side of the equation.
43 + -43 + 11n = 12 + -43

Combine like terms: 43 + -43 = 0
0 + 11n = 12 + -43
11n = 12 + -43

Combine like terms: 12 + -43 = -31
11n = -31

Divide each side by '11'.
n = -2.818181818

Simplifying
n = -2.818181818

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