NashobaY567864 NashobaY567864 25-10-2022 Mathematics contestada What is the sum of (-2.1x + 3.7) and (5 + 4.9x)?A. -7.0x + 8.7B. -2.8x + 8.7C. 2.8x + 8.7D. 7.0x + 8.7