15-12(3)=n

Solution for 15-12(3)=n equation:

Simplifying
15 + -12(3) = n

Multiply -12 * 3
15 + -36 = n

Combine like terms: 15 + -36 = -21
-21 = n

Solving
-21 = n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
-21 + -1n = n + -1n

Combine like terms: n + -1n = 0
-21 + -1n = 0

Add '21' to each side of the equation.
-21 + 21 + -1n = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -1n = 0 + 21
-1n = 0 + 21

Combine like terms: 0 + 21 = 21
-1n = 21

Divide each side by '-1'.
n = -21

Simplifying
n = -21