5 pencils and 7 pens together cost rs 50 whereas 7 pencils and 5 pens together cost rs 46.which system of linear equations in two variables do the data represent
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Step-by-step explanation:
let the no. of pencils be x
let the no. of pens be y
5x + 7y =50
7x + 5y = 46
this represents a straight line
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