3 2x 5 4 19 July 8, 2019 16 32 64 128 Solve for x 3 2x 5 4 19 3 (- 4 2 )+ 2x 5 =- 19 2 7 2x 5 )- 3 2x 4 )= 19 1 2x 5 3 =- 1 2x 19 4 3 x 7 )- 19 4 2x 5 2 1×3 5/4 9