2x-3>3-4x ① 4-3x≥x-8

问题描述:

2x-3>3-4x ① 4-3x≥x-8

15(3X-8)-4(2×3)= 6(4X-4)-4
==>
45X-120-8X -12 = 24倍-24 -4
==>
13倍= 104
==>
X = 8

2x-3>3-4x
移项得
6x>6
x>1
4-3x≥x-8
移项得
4x≤12
x≤3

1<x≤3