On Tuesday Wilbur bought eight posters. On Wednesday half of all the posters that he had were destroyed. On Thursday there were only 17 left. How many did he have on Monday?

Answer 1

amount he had on Monday = x

amount he had on Tuesday = x + 8

amount he had on Wednesday = (x+8)/2

left on Thursday = 17

(x+8)/2 = 17

x = 26

Answer 2

amount he had on Monday = x

amount he had on Tuesday = x + 8

amount he had on Wednesday = (x+8)/2

left on Thursday = 17

(x+8)/2 = 17

x/2 + 8/2 = 17

x/2 + 4 = 17

x/2 + 4 - 4 = 17 -4

X/2 = 13

(X/2)2 = 13(2)

X = 26

Answer 3

17 were half of what he had on Wednesday.

On Wednesday he had 34

8 of those 34 he bought on Tuesday

He had 26 on Monday