exam Maths Puzzle Numerical Ability

A purse has P218 in P10, P5 and P1 coins.There are 46 coins in all and there are 4 more P5 coins than the P10 coins. How many of each kind of coin are there? pls help me i rily nid

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I need some help:
Solve: x/5x+10+x-3/x+2=7/5

and

3/7=15/x Fully Factor.

1. 3a^2-36a+36
2. 4(x-3)^2 - 9(x+4)^2

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