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Maths Puzzle
Numerical Ability
the sum of two numbers is 8. their difference is 12. find the numbers.
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Idk how to solve and check this problem,
The sum of a number and its reciprocal is 10/3. What is the number?
Solve the system.
6y + w = -10
x + y + 3z - w = 13
6x + z + 3w = 14
x + y + 5z = 13