jmk41414141p4txqr
jmk41414141p4txqr
17-10-2018
Mathematics
contestada
help with me 11 please
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mrndcn92
mrndcn92
17-10-2018
x + y + z = 27
x = 2z
y = 3 + z
2z + 3 + z + z = 27 ; 4z = 24; z = 6 youngest
x = 12 oldest
y = 9 middle one
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