7 2 x 10 )= 15 July 8, 2019 16 32 64 128 7 5 x )- 2 x 10 )= 15 10 7 x 2 (- 2x 15 Jika ksp l oh 3 2 7 x 10 15 Justify each step of the solution 7 2 x 10 )= 15 7 x 10 7 + 10 10 ×7= 2
