Difference between revisions of "1973 Canadian MO Problems/Problem 2"
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==Problem== | ==Problem== | ||
| − | + | Find all real numbers that satisfy the equation <math>|x+3|-|x-1|=x+1</math>. (Note: <math>|a| = a</math> if <math>a\ge 0; |a|=-a if a<0</math>.) | |
==Solution== | ==Solution== | ||
. (Note: 
if 
.)
