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?
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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 class=