Question

4 x ... = 16 x 1/2 ?
2 x ... = 36 : 3 ?
(1/2 x ...) - 25 = 25 x 17 ?

Answer 1

4 x ... = 16 x 1/2
4 x ... = 8
... = 8 : 4
... = 2

2 x ... = 36 : 3
2 x ... = 12
... = 12 : 2
... = 6

(1/2 x ...) - 25 = 25 x 17
(1/2 x ...) - 25 = 425
(1/2 x ...) = 425 + 25
1/2 x ... = 450
... = 450 x 2
... = 900

Answer 2

4 x ? = 16 x 1/2
4 X ? = 8
? = 8/4
? = 4
2 X ? = 36 : 3
2 x ? = 12
? = 12/2
? = 6
(1/2 X ?) - 25 = 25 x 17
1/2 x ? = 425 + 25
1/2 x ? = 450
? = 450 : 1/2
? = 900