aubri
aubri
15-04-2014
Mathematics
contestada
How do you solve and check it
-5 - 5y =0
y=8x
Respuesta :
deathstrike001
deathstrike001
15-04-2014
-5-5y=0
y=8x
substitute the value of y
-5-5(8x)=0
-5-40x=0
add 5 to both sides.
-40x=5
divide both sides by -40
x=-5/40
simplify gcf=5
x=-1/8
checking:
Y=8x
y=8(-1/8)
y=-1
Substitute it to the 1st equation
-5-5(-1)=0
-5+5=0
0=0
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