-15=2n+3

Solution for -15=2n+3 equation:

Simplifying
-15 = 2n + 3

Reorder the terms:
-15 = 3 + 2n

Solving
-15 = 3 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
-15 + -2n = 3 + 2n + -2n

Combine like terms: 2n + -2n = 0
-15 + -2n = 3 + 0
-15 + -2n = 3

Add '15' to each side of the equation.
-15 + 15 + -2n = 3 + 15

Combine like terms: -15 + 15 = 0
0 + -2n = 3 + 15
-2n = 3 + 15

Combine like terms: 3 + 15 = 18
-2n = 18

Divide each side by '-2'.
n = -9

Simplifying
n = -9