3 years ago

X – y +z = 5 x + y + 2z = 19 x + y + z = 15

Mathematics

1 answer:

otez555 [7]3 years ago

8 0

Answer:

x=5,y=5,z=5

Step-by-step explanation:

x=15-y-z

15-y-z-y+z=5

15-2y=5

y=5

x+y+z=15

15-2y+y+z=15

15-10+5+z=15

z=5

x-y+z=5

x-5+5=5

x=5

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