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Pears are 4P each and apples are 9P each

How much will 6 apples and 9 pears cost?

Algebra is what you use to get the answer even if you think it's just Arithmetic.

If a=9 and p=4

Then:-

9p + 6a =?

though as there are 9 pears and the apples cost 9 pence one could just add 4 and 6 then multiply the sum by 9 so just arithmetic (in this example )

El Loro

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