Solve 2a 4 12 July 8, 2019 16 32 64 128 Solve 2a 4 12 a 2 a 4 a 8 a 10 Solve.2a + 4 12 a a 2 a a 4 a 8 a a 10 Solve. 2a + 4 12 a a 2 a a 4 a a 8 Salve 2