When using the order of operations you should always complete multiplication before division.
order of operations, also known as PEMDAS (Parentheses, Exponents, Mutiplication, Division, Addition, Subtraction) says you do M before D no matter which comes first in the equation.
The horizontal distance from A to the point = 3/10 * 14 = 4.2, so the c coordinate of the point is -3+ 4.2 = 1.2. Vertical distance = 3/10 * 12 = 3.6 So the y coordinate = -5+ 3.6 = -1.4. Answer is (1.2, -1.4)