解不等式4x+5小于或等于3(x+2),5分之x-1

问题描述:

解不等式4x+5小于或等于3(x+2),5分之x-1

(1) 4x+5≤3(x+2)
=> 4x+5≤3x+6
=> 4x-3x≤6-5
=> x≤1
(2) (x-1)/5 3(x-1) 3x-3 3x-5x -2x x>-3/2