(1)
x+1 6
x?1 5
=5,1 2
x?11 30
= 5,1 2
x?11 30
+1 2
=5+1 2
,1 2
x×11 30
=30 11
×11 2
,30 11
x=15;
(2)0.5:4=x:4.8,
4x=0.5×4.8,
4x÷4=2.4÷4,
x=0.6.