blajara4 blajara4 03-09-2020 Mathematics contestada 1. A+3a-4(9-a) 2. 3c(5a+2n-1) 3. -2/3(5/6x-3) 4. 3(5x+9-4x) 5. 2(x-1)+5(x+9) 6. -3-5x-5y+8x+7y+8 7. 3c(5a+2b-1) 8. 3(x+9)-(x-6)