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18-03-2017
Mathematics

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If y is proportional to x and y = -15 when x = -20, what is the value of x when y = 12?
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DerpaNerpa DerpaNerpa

18-03-2017

When y=-15, x=-20. So subtract x from y, you will get that y= 0 and x=-5. Add 12 to both and you have your answer, x=7 and y=12

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