Final answer:
To solve for X in the equation 3-5 -15 multiplied by 5, simplify the expression inside the parentheses and then multiply the result by 5, resulting in -100.
Step-by-step explanation:
To solve for X in the equation 3-5 -15 multiplied by 5, we need to perform a series of operations. First, simplify the expression inside the parentheses: -5 - 15 = -20. Then, multiply the result by 5: -20 * 5 = -100. Therefore, the solution for X is -100.