X+Y=-20 (1.4÷100)x+(3.7/100)x=0.625 求 x求x = y=

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X+Y=-20 (1.4÷100)x+(3.7/100)x=0.625 求 x求x = y=
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X+Y=-20 (1.4÷100)x+(3.7/100)x=0.625 求 x求x = y=
X+Y=-20 (1.4÷100)x+(3.7/100)x=0.625 求 x
求x = y=

X+Y=-20 (1.4÷100)x+(3.7/100)x=0.625 求 x求x = y=
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