Shilpa buys 3 erasers and 6 pencils for `390. Later, she buys another eraser and 3 more
pencils of the same kind for `130. Represent this situation algebraically and geometrically.
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Let the number of Erasers be x and numbers of Pencil be y
Hence,
3x + 6y = 390
and x+3y = 130
Hence,
3x + 6y = 390
and x+3y = 130
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