9x 4 5x 12 7 8 July 8, 2019 16 32 64 128 7x−9 12 or 14x+8 11 4) 9 5x + 2 =5 7x-5 6 6) 2 9x + 7 4=x+1 7. 5) 1 5x + 8 =3 1x+16 9 x 8 =
