Răspuns :
a) x+12,5=123,75
x = 123,75 - 12,5
x = 111,25
b) x-2,05=3,147
x = 3,147 +2,05
x = 5,197
c) x:3,2=5
x = 5 x 3,2
x = 16
x = 123,75 - 12,5
x = 111,25
b) x-2,05=3,147
x = 3,147 +2,05
x = 5,197
c) x:3,2=5
x = 5 x 3,2
x = 16