ðə stˈɑːk pɹˈaɪs ˈɛs wɪl dˌɪsɐpˈɪɹ ɪf wiː sʌbtɹˈækt wˈʌn ᵻkwˈeɪʒən fɹʌmðɪ ˈʌðɚ, ðˈʌs ɛnˈeɪblɪŋ wˈʌn tʊ ɛksplˈɔɪt ɐ vaɪəlˈeɪʃən ʌv pˌʊt slˈæʃ kˈɔːl pˈæɹᵻɾi wɪðˌaʊt ðə nˈiːd tʊ ɪnvˈɛst ɪnðɪ ˌʌndɚlˈaɪɪŋ stˈɑːk.
The stock price S will disappear if we subtract one equation from the other, thus enabling one to exploit a violation of put/call parity without the need to invest in the underlying stock.