Question

If the system of equations 4x- 5y=6 and -12x+ay=b is consistent which of the following cannot be the
value of b?
18, 20, -22, 16​

Answer 1

Answer:

18

Step-by-step explanation:

The given equations are:

4x-5y=6

-12x+ay=b

If we sum these two equations,

8x-5y-b+ay=6

Since,a1/a2≠b1/b2

that is 4/12≠-6/b

4b≠72

b≠72/4

b≠18

Answer 2

Step-by-step explanation:

hope this helps....

please mark brainlest