exam Maths Puzzle Numerical Ability

It would be great if someone could help me with this and maybe give a small summary because I can't really get it quiet down how to do this:

Graph each equation to find the solu

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exam Other Question

x - 11 = 5
I know for a lot of people this is simple, but I have been out of school for 20+ years and never took any algebra before. This is all Greek to me. Please help!

Thank you!
the sum of two numbers is 12. three times the product of the numbers is 105. what re the twoo numbers?