Ihonestly don't know how to answer this question

I believe x is 53 i just added 90 and 37 then subtracted the sum from 180 i hope this is correct if not let me know the correct answer.

By j 8yrydyeydyd dhdhrhdhdh

Solution: beginning of the unit = - 2end of the unit = beginning of the unit + 4end of the unit = - 2 + 4end of the unit = 2final answer: therefore, aila was able to reach 2 ( insert name of unit of measurement ) at the end of the unit.hope this ! : )have a lovely day! < 3