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Verified answer
Y ≤ 2x + 3y ≥ -(2x +3)
x² + 3x + 1 = 2x + 3
x² + x - 2 = 0
(x + 2)(x - 1)=0
x = -2 atau x = 1
garis bilangan yang memenuhi
- 2 ≤ x ≤ 1