15=0.6(10+n)

Solution for 15=0.6(10+n) equation:

Simplifying
15 = 0.6(10 + n)
15 = (10 * 0.6 + n * 0.6)
15 = (6 + 0.6n)

Solving
15 = 6 + 0.6n

Solving for variable 'n'.

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

Add '-0.6n' to each side of the equation.
15 + -0.6n = 6 + 0.6n + -0.6n

Combine like terms: 0.6n + -0.6n = 0.0
15 + -0.6n = 6 + 0.0
15 + -0.6n = 6

Add '-15' to each side of the equation.
15 + -15 + -0.6n = 6 + -15

Combine like terms: 15 + -15 = 0
0 + -0.6n = 6 + -15
-0.6n = 6 + -15

Combine like terms: 6 + -15 = -9
-0.6n = -9

Divide each side by '-0.6'.
n = 15

Simplifying
n = 15