18-ax=42 solve the equation for x assume a≠0

x=-24/a

Step-by-step explanation:

18-ax=42 isolate x by subtracting 18 from both sides to get -ax=24 then divide by a negative 1 to get ax=-24 then divide by a to isolate x to get x=-24/a

if you mean

then it's c. 8, -7/3

but if you mean

then it is

i believe the answer is d.

hope it you! : d