解方程
(1)x (2)x1 (3)x
(4)x1 (5)x (6) x1
(7)x1 (8)2x (9)x
121111114x1x1x1944 (11)333(10) 2 (12)332535141218 77172756165637371414121414
(1)
x2311218 (2)x1 (3)x 5547711812解:x
4 7736xx 4 7解:x 解:x132551x 5x(4)
125151 (5)x (6) x1 776661155解:x 解:x1
7 666215 x1 x1 x1
7761 x1
71 x1
73311111(8)x1 (8)2x (9)x
77442443311111解:x1 解:2x 解:x
77442446111 x1 2x x
7222111xx4 22
x1解:x127
121111114x1x1x19 44 (11)333(11) 2 (12)33
1121011114x1x1x39 44 解:333 解:3解:2
11x122 15x133 两边同时乘以3得
1315xx122 33
18x 两边同时乘以2得 33
x21033
10233
x
x3 两边同时乘以3得
x8x4