5 7x 13 3 July 8, 2019 16 32 64 128 5 7x 13 )=- 30 7x 5 3x 13 5 7x 12 3 x 13 2 7x 5 13 3x 5 7x 13 4x 5 x 3 Solve 7x 5 3x 13 9x 2y 5 7x 3y 13 7x 13 2 2x 5 )+ 3x 23 5 x 7 = 35 5 13 7 - * 7 5x13 5 x - 7 = 13