Question

Determine whether –4 is a solution of –9x – 6 = 42.

Answer 1

-4 is not a solution because if you plug it into x you would get this:
-9(-4)-6=42
36-6=42
30=42
obviously 30 is not equal to 42 so therefore -4 is not equal to x

Answer 2

that make a sense thank you

Answer 3

No problem:) Do you need to find what is equal to x you would go like this:
-9x-6=42
-9x=48
x=-16/3 or -5.33

Answer 4

thanks I write down that it help me to work out some of the problem