Final answer:
To find the missing number for which the equation has no solutions, set the equation equal to zero and solve for x. The missing number is -2/17.
Step-by-step explanation:
To find the missing number for which the equation has no solutions, we need to set the equation equal to zero and solve for x.
The given equation is: x * 15 = -2x - 2
Rearranging the terms, we get: x * 15 + 2x = -2
Combining like terms, we have: 17x = -2
Dividing both sides by 17, we find: x = -2/17
Therefore, the missing number is -2/17.