4x = 49y
7x/4x = 16/49
(7/4)x = (4/2)^2 = (7/4)^-2
x = -2
y = 7x/16
y = 1/49*16
y-x = 1/49*16 +2
1/784+2
= 1569/784
- Dwennon asked 8 months ago
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