Answer:
-9
Step by step explanation:
it can also be written as; 18 over x is equal to -2 over 1
you cross multiply to get 18 = -2x
then multiply through with -2; 18 over -2 = -2x over -2
you cross out; -2 cancels itself and -2 goes into 18 , -9 times
Therefore; the answer is -9
