1.15-9y3x+6 3.3( x-1) x-2( x-6)
问题描述:
1.15-9y3x+6 3.3( x-1) x-2( x-6)
答
1.15-9y-9
x>-9/4
3.3( x-1) -x+12
12x>32
X>8/3