(1)解方程: x - 3 x - 2 + 1 = 3 2 - x ;
(2)解不等式组: 2 x > 1 - x 4 x + 2 < x + 4 .
(1)计算: ( 8 - 1 2 ) × 6 ;
(2)解方程: 2 x - 5 x - 2 + 3 = 3 x - 3 x - 2 .
解方程和不等式组:
(1) x 2 x - 5 + 5 5 - 2 x = 1
(2) 5 x - 10 ⩽ 0 x + 3 > - 2 x .
解方程: 3 x − 1 − 2 x = 0 .
解方程: x 2 + 2 x − 2 + 1 = 6 x − 2 .
解方程: x x + 3 − 1 x = 1 .
解方程: x + 1 x − 1 + 4 1 − x 2 = 1 .
(1)计算: 1 3 27 − 4 3 sin 60 ° + | 2 − 3 | + 4 3
(2)解分式方程: x − 1 x − 2 + 2 = 3 2 − x
解方程: x x − 1 − 3 ( x − 1 ) ( x + 2 ) = 1 .
解方程 2 x = 1 x − 2 .
(1)解方程: x x + 2 = 2 x − 1 + 1 .
(2)解不等式组: 2 x − 4 > 0 x + 1 ⩽ 4 ( x − 2 )
解方程: x x + 1 = 2 x 3 x + 3 + 1 .
解方程: 2 x − 1 = 1 x − 1 + 1 .
(1)解方程: 2 x x - 2 = 3 x - 2 + 1 ;
(2)解不等式: 4 ( x - 1 ) - 1 2 < x
(1)解方程: 2 x = 3 x + 1
(2)解不等式组: 2 x > 0 x + 1 2 > 2 x - 1 3 .