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Mathematics, 14.09.2019 05:30 sheila54
Prove that for all x and y in z, x +3y is a multiple of 7 iff 3x +2y is a multiple of 7. might be to calculate 2(3x +2y)+(x +3y) and/or 4(x +3y)+(3x +2y).
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Prove that for all x and y in z, x +3y is a multiple of 7 iff 3x +2y is a multiple of 7. might be t...
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