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21-7y+3x-xy
- 7(3-y)+x(3-y)
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∙ 14y ago
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What are the possible values of x and y when 155x plus 217y equals n whereas n is the HCF of 155 and 217 showing work?
If: 31 is the highest common factor of 155 and 217 Then: 155x+217y = 31 Divide all terms by 31: 5x+7y = 1 So: 5*1/10 + 7*1/14 = 1 because 1/2 + 1/2 = 1 Therefore the possible values of x and y are 1/10 and 1/14 respectively Check: (155*1/10)+(217*1/14) = 31
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