3 −5n 2n July 8, 2019 16 32 64 128 3 - 5n 2n 3 5n 2n 15 3 5n 2n on a number line 3 5n 2n 7 n 3 - 5n 2n solve 5n 3 2n 1 5n 3 2n 6 5n 3 2n 2 2n 3 5n 7 )= 1 5n 3 (- 2n 7 5n 3 2n 9 5n 3 2n 12 5n 3 2n 21 5n 3 2n 4
