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A
C
B
D
–4–3–2–11234–4–3–2–11234–4–3–2–11234–4–3–2–11234–4–3–2–11234–4–3–2–11234–4–3–2–11234–4–3–2–11234y=0.4x+2y=1.9x+3y=0.8x3y=2.9x1
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