Book Maths Puzzle Algebra

1. Let x represent the number and translate the given phrase into an algebraic equation.
a. the difference between 2 and 3 times a number.
b. the sum of 5 and twice a number is

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Book Other Question
Right now, Alan's mother is 4 times older than he is. In 4 years, she will be 3 times older than he is. How old are Alan and his mother right now?



Second question:

Kim is using a list of his friends' ages. He adds two of his friends' ages and gets 17. He multiplies the ages and gets 72. How old are his two friends?





I would appreciate your help. Thanks.

-- Mary CAN YOU HELP WITH A PROB I AM NOT ABLE TO SOLVE
9X-7Y+3Z=-48
2X+3Y+4Z=-4
-3X+2Y-5Z=8