Answer:
(x,y) = (-2, -1)
Step-by-step explanation:
We start off by substituting the value of "x".
5x+7y=-17
x=-
We then solve 5
y=-1 *Substitute the value of "y"
x= -
x=-2
This works.
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A=6
b=24
c=33
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b=24
c=33
don't put x..x'2 ok when you solving by this
First subtract three from both sides. then you have 
+2x=-3 and you solve from there