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Mathematics, 07.04.2020 15:27 daniellecraig77

0.2x + 0.3y = 1.3.
0.4r + 0.5y = 2.3. solve by using substitution

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0.2x + 0.3y = 1.3.
0.4r + 0.5y = 2.3. solve by using substitution...
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