3 years ago

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

2 answers:

7 0

-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

julsineya [31]3 years ago

7 0

Answer:

-1,7

Step-by-step explanation:

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