4 3x 7 )= 5 4x 12 July 8, 2019 16 32 64 128 P 3x 7 5 q 4x 12 4 which is the contrapositive of p → q P 3x + 7 = –5 x 4x + 12 = –4 Given p 3x + 7 = –5 x 4x + 12 = –4
