Rachel is 11 years older than scott. rachel's age is 7 years less than two times scott's age. the system below models the relationship between rachel's age (r) and scott's age (s):

r = s + 11
r = 2s – 7

which is the correct method to find rachel's and scott's ages?

a. solve r + 11 = 2r – 7 to find the value of s.
b. solve s + 11 = 2s – 7 to find the value of s.
c. write the points where the graphs of the equations intersect the x-axis.
d. write the points where the graphs of the equations intersect the y-axis.