That 1/3 (-5x) is incompatible with any of the choices.
I suspect you have made a typo.
Try entering in your expression at wolframalpha.com
It will give you alternate versions, and it will show how it interpreted your input. Use enough parentheses that it agrees with your intent.
For example, as written, you have
http://www.wolframalpha.com/input/?i=1%2F3(%E2%88%925x%E2%88%926%2F2)%E2%88%927%2F8
Select all of the expressions that are equivalent to 1/3(−5x−6/2)−7/8 .
A.−20x−45/24
B.−5x−6/6−7/8
C.−8x/24+21/24
D.5x−6−21/12
3 answers
54etrfdertfyguhujiuhygtfrdeswedrftgyhujujjujujiujijjiujiujiujjiujuijiuyhgtfredws3ertfgbhjnkmmkjnhbgvftdrsxewaqAWSDXFCGVHBJNMJNHBGVFCDRESWASEDCFGVHBJNM,MN BHVGCFXDSZDXFCGVHBJNKMKNJHBGVFCDRESWEXDCFVGHBJNHBGVFCDXESDCFVGBHNJHBGVFTCDRXSEDFCGVHBJNKNJHBGVFCDXCFGVHBJN MNBVFCDFV
Idek the answer 2 that...lol hehe
Spamzz:)
Spamzz:)