Question

解不等式{5x-4<3(x+1) (x-1)/2>(2x-1)/5}

要快！急急急急急急！
错了，是解不等式组，对不起

Answer 1

{5x-4<3(x+1) (x-1)/2>(2x-1)/5}
5x-4<3(x+1)
5x-4＜3x+3
5x-3x＜3+4
2x＜7
x＜3.5
(x-1)/2>(2x-1)/5
5(x-1)＞2(2x-1)
5x-5＞4x-2
5x-4x＞-2+5
x＞3
∴不等式组的解是3＜x＜3.5

Answer 2

解不等式5x-4<3(x+1)
5x-3x<3+4
2x<7
x<7/2
解不等式(x-1)/2>(2x-1)/5
5(x-1)>2(2x-1)
5x-4x>5-2
x>3
所以不等式组的解是3<x<7/2

Answer 3

5x-4<3(x+1) 2x<7 x<7/2
(x-1)/2>(2x-1)/5 5x-5>4x-2 x>3
不等式组的解为 3<x<7/2