8(x - 6) = 4x Distribute. 8x - 48 = 4x Subtract 8x from both sides. 8x -8x - 48 =4x -8x Now you have... -48 = -4x Divide -4 by both sides. -48/-4 = -4x/-4 12 = x The number is 12.
The order that the pitcher threw is F, C, F, F, C, C, F, F, F then the next five pitches are C, C, C, C, F, F, F, F, F assuming the pitcher maintains this order