(1)2X-1>0 X+1<3 (2)3(X-1)+13>2(5-X)怎么做?
问题描述:
(1)2X-1>0 X+1<3 (2)3(X-1)+13>2(5-X)怎么做?
答
(1)2X-1>0 X+1<3
x>1/2,x0
x>0(2)3(X-1)+13>2(5-X)5-(2X+1)<3-6X这个怎么做?3(X-1)+13>2(5-X) 3x-3+13>10-2x 5x>0x>0 5-(2X+1)<3-6X 5-2x-1