Adrian thinks of a number.
He multiplies this number by 7 then subtracts 9.
His answer is 40. What was Adrian's original number?
Adrian's friend thinks of a number.
He then does the following operations:
Multiply by 3, subtract 7, multiply by 2 then add 38 (in that order). He finds that the number he ends up with is 12 times his original number.
What was Adrian's friend's original number?
Change NumbersEasier Questions
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Teacher, do your students have
access to computers?
Here a concise URL for a version of this page without the comments.
Here is the URL which will take them to the Think Of A Number exercise.
Here is the URL which will you to our eQuation Generator which provides unlimited practice solving linear equations.