Given: m
Prove: x = 15
m
m
5x + 7x = 180 a. ____________________
12x = 180 b. ____________________
x = 15 c. ____________________
To prove that x = 15:
a. We are given m twice, but it does not provide any relevant information for proving x = 15.
b. We are given the equation 5x + 7x = 180. This can be simplified to 12x = 180. This equation does not prove that x = 15.
c. Since we do not have any additional information or equations, we cannot prove that x = 15.