1.3×4+0.2X=6 A X=56 B X=0.16 C X=4 D X=0.4

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1.3×4+0.2X=6AX=56BX=0.16CX=4DX=0.41.3×4+0.2X=6AX=56BX=0.16CX=4DX=0.41.3×4+0.2X=6AX=56BX=0.16CX=4DX=0

1.3×4+0.2X=6 A X=56 B X=0.16 C X=4 D X=0.4
1.3×4+0.2X=6 A X=56 B X=0.16 C X=4 D X=0.4

1.3×4+0.2X=6 A X=56 B X=0.16 C X=4 D X=0.4
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