3.00=1.50+1.14+1.05+n(0.3)

Solution for 3.00=1.50+1.14+1.05+n(0.3) equation:

Simplifying
3.00 = 1.50 + 1.14 + 1.05 + n(0.3)

Reorder the terms for easier multiplication:
3.00 = 1.50 + 1.14 + 1.05 + 0.3n

Combine like terms: 1.50 + 1.14 = 2.64
3.00 = 2.64 + 1.05 + 0.3n

Combine like terms: 2.64 + 1.05 = 3.69
3.00 = 3.69 + 0.3n

Solving
3.00 = 3.69 + 0.3n

Solving for variable 'n'.

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

Add '-0.3n' to each side of the equation.
3.00 + -0.3n = 3.69 + 0.3n + -0.3n

Combine like terms: 0.3n + -0.3n = 0.0
3.00 + -0.3n = 3.69 + 0.0
3.00 + -0.3n = 3.69

Add '-3.00' to each side of the equation.
3.00 + -3.00 + -0.3n = 3.69 + -3.00

Combine like terms: 3.00 + -3.00 = 0.00
0.00 + -0.3n = 3.69 + -3.00
-0.3n = 3.69 + -3.00

Combine like terms: 3.69 + -3.00 = 0.69
-0.3n = 0.69

Divide each side by '-0.3'.
n = -2.3

Simplifying
n = -2.3