A set of equations is given below:

Equation S: y = x + 9
Equation T: y = 2x + 2

Which of the following steps can be used to find the solution to the set of equations? (4 points)

a
x = 2x + 1

b
x + 9 = 2x + 2

c
x + 1 = 2x + 9

d
x + 9 = 2x + 1