Question

HELPPPPPPPPPPPPPPPPPPPPP ME PLZZZZZZZZZZ

A system of two equations is shown below:
Equation C: a = 3b + 6
Equation D: a = 7b − 1
What value of a can be substituted into equation D to solve the system of equations?
A) 3b
B) 7b
C) 3b + 6
D) 7B − 1

Answer 1

Answer:

C because in C a=3b+6 so D can be substituted like that