book Maths Puzzle Numerical Ability

Here is a word problem that I need help with. I think I have the partial answer, but I am not too sure. Will you help me?

Find two postive numbers which differ by 3 and have a p

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book Other Question

This question is actually about elimination because there werent any catorgories for elimination. My question is:
5x-4y=1
7x+4y=11

Thanks for the help!
can you please solve this for me

x to the second power+6x+5=0