Answer: x=-5/2 ; y=11/2
Step-by-step explanation:
Hi, to answer this question we have to solve the system of equations:
5x-y =-7(a)
3x-y=-2(b)
Solving for "y" in (a)
5x+7=y
Replacing "y" in (b)
3x-(5x+7) =-2
3x-5x-7=-2
-7+2=-3x+5x
-5=2x
x= -5/2=-2.5
(decimal form)
Replacing "x" in (a)
5(-2.5) -y=-7
-12.5-y=-7
-12.5+7=y
-5.5=y
y=-5.5= -11/2
Feel free to ask for more if needed or if you did not understand something.
