8-5x<2x-20
8-5x<2x-20
8+20<2x+5x
28<7x
4<x
X>4
(REMARK:only if a number is divided by a negative number should the inequality mark change to the opposite one.)
8+20<2x+5x
28<7x
4<x
X>4
(REMARK:only if a number is divided by a negative number should the inequality mark change to the opposite one.)