解:(1)

+2x=

,

+2x

=


,
2x=

,
2x÷2=

÷2,
x=

;
(2)

×3-7x=1.04,
2.16-7x=1.04,
2.16-7x-1.04=1.04-1.04,
1.12-7x=0,
7x÷7=1.12÷7,
x=0.16;
(3)

x-1-

x=2,

x-1=2,

x-1+1=2+1,

x=3,

x

=3

,
x=18;
(4)x-

x=14,

x=14,

x

=14

,
x=18;
(5)3x-

x=

,

x=

,

x

=


,
x=

;
(6)

=

,
2.4x=72×0.26,
2.4x=18.72,
2.4x÷2.4=18.72÷2.4,
x=7.8;
(7)1.2:

=

,

x=1.2×5,

x=6,

x

=6

,
x=9;
(8)

=

:

,

x=18×

,

x=

,

x

=


,
x=12;
(9)

:

=x:0.8,

x=

×0.8,

x

=0.04

,
x=0.2;
(10)x

=

+1,
x

×

=

×

,
x=1

.
分析:(1)、(2)、(3)、(4)、(5)、(10)先化簡,再依據(jù)等式的性質(zhì)求解;
(6)、(7)、(8)、(9)先依據(jù)比例的基本性質(zhì)化簡,再依據(jù)等式的性質(zhì)求解.
點評:本題主要考查了學生對于比例基本性質(zhì)、等式性質(zhì)知識的掌握.