raj purchased 2 pencils and 3 eraser for rs.9 . Sanju purchased 4 pencils and 6 erasers for rs.18 .
Represent this situation algebraically.
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Let the number of pencils be x
and let the number of erasers be y
so,
Raj,
2x + 3y = 9
sanju,
4x + 6y = 18
and let the number of erasers be y
so,
Raj,
2x + 3y = 9
sanju,
4x + 6y = 18
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