Charles thinks of a number. "If I double my number and add 3 the answer is 7"  Chase thinks of a number. "If I multiply my number by 2 and add 5 the answer is 9"  
Chloe thinks of a number. "If I add 3 to my number then divide the result by 2, the answer is 9.5"  Christian thinks of a number. "If I multiply my number by 2 and subtract 2 then multiply the result by 6, the answer is 5 less than 245" 
What numbers are they thinking about?
Topics: Starter  Algebra  Functions  Puzzles
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