Răspuns:
Explicație pas cu pas:
a)
256:x=4
x=256:4
x=64
b)
x:4=2003
x=2003*4
x=8012
-
c)
100+x:12=104
x:12=104-100
x:12=4
x=4x12
x=48
d)
x:16=17
x=17*16
x=272
e)
880:x+19=39
880:x=39-19
880:x=20
x=880:20
x=44
f)
x:10+39=139
x:10=139-39
x:10=100
x=100*10
x= 1.000
