Answer:
4.2
Step-by-step explanation:
5.7-1.5=4.2
Step-by-step explanation:
option C is the correct answer of this question
For this case we have the following equation:

If we add 1 to both sides of the equation we have:

Dividing between 2 on both sides of the equation we have:

The graph of the solution is shown in the attached figure.
Answer:
See attached image