book Maths Puzzle Numerical Ability

The sun of two numbers is 64. Twice the lesser number is five more that the greater number. Find the numbers.

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please help me with this problem because i donot understand how to do it.
2y(y^+3y-2) you have to multiply then simplify i would greatly apprciate it if you could help me.
I need help please! The question I have is:

The sum of three consecutive odd integers = 171

Thank You!