of y varies directly as x and y=12 when x=72 then what is the value of x when y=3

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1 Answer

yer werds impli y=x+konst, then konst=y-x

& y=12 at x=72, so konst=12-72=-60

so y=x-60

so x=y+60

wen y=3, x=3+60

x=63
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