Question

Shilpa buys 3 erasers and 6 pencils for 390.Later she buys another eraser and 3 more pencils of the same kind for 130 . Reparent this situation algebraically and goemetrically

Answer 1

Check the answer from the attachment

Answer 2

Answer:

we can say that in later purchase she got one pencil free

Step-by-step explanation:

Shilpa buys 3 erasers and 6 pencils for 390.Later she buys another eraser and 3 more pencils of the same kind for 130

Let say 1 eraser cost = rs E

1 Pencil Cost = Rs P

Earlier Bought 3 erasers and 6 pencils for 390

3E  + 6P = 390

=> E + 2P = 130

Later she buys another eraser and 3 more pencils of the same kind for 130

E + 3P = 130

=> E + 2P + P = 130

=> 130 + P = 130

=> P = 0

we can say that in later purchase she got one pencil free