0
Anonymous
5x + 2x - 7 = 0 Simplify 7x - 7 = 0 Add 7 to both sides 7x - 7 + 7 = 0 + 7 7x = 7 divide both sides by 7 x=1
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-7
(1, 0)
5x - y + 1 = 0
x = -1.2, y = -3
The discriminant is -199.