exam
Maths Puzzle
Numerical Ability
A says to B,"i am three times old as you were when i was as old as you are."the sum of their present ages is 64 years.find their ages.
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i need help with this question i have no idea how to beging to solve it.
it says : subtract the lower polynomial from the upper one
2x^2y-5xy^2+2 and
will you please solve this problem for me it will be greatly appreciated:
solve: (n)/(n-3) + n=(7n-18)/(n-3)