livvydevins3
livvydevins3
30-05-2020
Mathematics
contestada
Solve algebraically
x-4y=-10
x+y=5
Respuesta :
dudibakytbekovich
dudibakytbekovich
30-05-2020
Answer:
if x+y=5, then x=5-y
so x-4y=-10
5-y-4y=-10
5-5y=-10
-5y=-15
y=3
x=5-y
x=5-3
x=2
x=2; y=3
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