(1)3(2x+1)=12; (2)x+3/2=2x+1/3-1.

问题描述:

(1)3(2x+1)=12;
(2)

x+3
2
=
2x+1
3
-1.

(1)去括号得:6x+3=12,
移项合并得:6x=9,
解得:x=1.5;
(2)去分母得:3x+9=4x+2-6,
移项合并得:x=13.