Answer:
The answer is -3
Step-by-step explanation:
When negative three is put into the equation, making it -3x + 17 = -3x + 19. there are no solutions because when solved the answer to that equation is 17 = 19, which is not true.
Step By Step Solving
-3x +17 = -3x + 19 - move the -3x to the other side by adding 3x to both sides.
17 = -3x + 3x + 19 - solve -3 + 3 and -x + x = 0 to get the answer
17 = 19 - which is not true so there are no solutions when the missing number is -3.
