Question

Which expression can you substitute for in 12x +y=5 to solve the system below.

x= 6- y
12x + y=5

A) 5-12y
B) 5+y
C) 6-y

Answer 1

C

Step-by-step explanation: Since x is by itself in the first equation, we can substitute 12x + y = 5 into 12(6-y) + y = 5.