Respuesta :
34 - 9 = 25 => A
The rest aren't correct
42 - 8 = 34
76 - 42 = 34
=> D
The rest aren't correct
42 - 8 = 34
76 - 42 = 34
=> D
The first one is c (9,59)
Substitute each value of the replacement set for x and simplify.