Question

1. -9x=16-y
12x=-5-y

Answer 1

-9x=16-y equation 1
12x=-5-y equation 2
x=-5-y÷12 from equation 2
substitute this x in equation 2
so 
-9(-5-y÷12)=16-y
15+3y=64-4y
7y=49
y=7 
and then substitute this value of y in equation (x=-5-y÷12)
so x= -5-7÷12
     x=-1 
so y=7 and x=-1

Answer 2

Answer:

-1,7

Step-by-step explanation: