SOLUTION: if 15 is added to a number, the result is 56 less than twice the number.

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Question 646745: if 15 is added to a number, the result is 56 less than twice the number.
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

if 15 is added to a number x,
x%2B15

the result (x%2B15) is 56+less than twice the number (2x).
%28x%2B15%29%2B56=2x
x%2B71=2x
71=2x-x
highlight%2871=x%29