Question 10(Multiple Choice Worth 5 points)
(03.07A LC)
A system of two equations is shown below:
Equation C: a = 2b + 7
Equation D: a = 5b − 3
What value of a can be substituted into equation D to solve the system of equations?
A 2b
B 5b
C 5b − 3
D 2b + 7