exam Maths Puzzle Numerical Ability

Write an algebraic equation for the english statement "subtract 5 from the sum of x and 7 times and the result is 20

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exam Other Question

Suppose Petra could not find her credit card bill and did not remember the amount of her bill. Could you still determine the cost of her items? Why or why not? A woman has an estate of $10,000. She leaves 2/5 to a charity. Of the remainder, 2/3 goes to her son. How much does her son get?