Answer: x=-1
Step by step shown below:
Answer:

Step-by-step explanation:
The equation for photon energy is given by:

Where:

This equation telling us that the higher the frequency of the photon, the greater its energy. And the longer the photon wavelength, the lower its energy.
So, replacing the data provided in the previous equation:

The answer is a i think but if u get it wrong im sorry
Answer:
Two systems of equations are equivalent if they have the same solution(s).
The mathematical sentance would be, 740 - 14 = 726, hope this helps.:D