I also marked the option which says that it can not be answered even with the help of both options.
But i have seen at two places in IMS section tests where they they say you can find the value of x.
For instance in DI sectional tests of IMS - Test 3 of PART-C
They have marked the option that you can find the answer. I got my answer wrong in two successive sectional tests in IMS.
Thats why i got really doubtful of this. In TIME they always suggest,mark the option that u can't find the answer. I don't know how come these institutes are suggesting different approaches.