0
Anonymous
y equals negative 8.
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- 5X + 25Y = 0 25Y = 5X Y = (1/5)X ============
7a+10=2a 7a+10-2a=0 5a+10=0 5a=-10 a=-2
4, -5
A=0 b=0 c=0
r2 + r - 20 = 0(r + 5)(r - 4) = 0r + 5 = 0 or r - 4 = 0r = -5 or r = 4