(1)原式=-27÷9/4×4/9-6×1/3
=-16/3-6/3
=-22/3
(2)原式=-49+2×9-6÷9
=-49+18-2/3
=-31又2/3
(3)6x-9+6x=6-x-2
12x-9=4-x
13x=13
x=1
(4)-1/6-8x=2x-3/4
-10x=-7/12
x=7/120
(1)原式=-27÷9/4×4/9-6×1/3
=-16/3-6/3
=-22/3
(2)原式=-49+2×9-6÷9
=-49+18-2/3
=-31又2/3
(3)6x-9+6x=6-x-2
12x-9=4-x
13x=13
x=1
(4)-1/6-8x=2x-3/4
-10x=-7/12
x=7/120