Question 978783
x+y=87,
2*x+0.75*y=100.25
x=87-y
2*(87-y)+0.75*y=100.25
174-2y+0.75*y=100.25
-1.25*y=-73.75
y=59.0
x=87-y
x=28 at 2 and  y=59 at 0.75
check
28+59=87
2*x+0.75*y=100.25
2*28+0.75*59=100.25
56+44.25=100.25
100.25=100.25
ok
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