Respuesta :

number 1 2 and 4 are the ones with 5
2 = 7 - x
substitute x
2 = 7 - 5
true bc 7-5=2
this is an answer

1+x=6
substitute x
1+5=6
this is also an answer

x - 4 = 9
substitute x
5-4=9
not true
not an answer

10/x = 2
substitute x
10/5 = 2
true
is an answer (remember the / is divided by)

10x= 2
substitute x
10(5) = 5
false 10•5= 50
not an answer