1) 8:(-2)9 +17 -488/(-2) 9 + 17 - 48-4 * 9 + 17 - 48-36 + 17 - 48-19 - 48-67
2) -61-40:((-4)2) -17-61 - 40 / (-42)-61 - 40 / -8-61 - (-5)-56
3) (-5) (1/2-5/6)-5 (3/6 - 5/6)-5 (-2/6)-5 (-1/3)5/3 or 1.67
4) (2/7-1): 20/21(2/7 - 7/7) : 20/21(-5/7) : 20/21(-5/7) * (21/20)-105/140-3/4 or -0.75
5) 0.8(-10)-(-5)(-0.1)-8 - 0.5-8.5
6) (6.1-8.5) / (-0.8)-2.4 / -0.83
7) 6 / (-5.4-3.6)6 / -9-2/3 or -0.67
8) 3/11 / -0.3 + (-1.2)(5/6)(3/11) / -0.3 + (-1.2) (5/6)(3/11) / -0.3 + (-0.1) (5/6)(3/11) / -0.3 + (-0.1) (5/6)-0.2
9) -x * -6 = -540x = 90
10) x / -0.5 = 0.18x = -0.09 or -9/100
11) -1/5x = -11/20x = 2.2 or 11/5
1) 8:(-2)9 +17 -48
8/(-2) 9 + 17 - 48
-4 * 9 + 17 - 48
-36 + 17 - 48
-19 - 48
-67
2) -61-40:((-4)2) -17
-61 - 40 / (-42)
-61 - 40 / -8
-61 - (-5)
-56
3) (-5) (1/2-5/6)
-5 (3/6 - 5/6)
-5 (-2/6)
-5 (-1/3)
5/3 or 1.67
4) (2/7-1): 20/21
(2/7 - 7/7) : 20/21
(-5/7) : 20/21
(-5/7) * (21/20)
-105/140
-3/4 or -0.75
5) 0.8(-10)-(-5)(-0.1)
-8 - 0.5
-8.5
6) (6.1-8.5) / (-0.8)
-2.4 / -0.8
3
7) 6 / (-5.4-3.6)
6 / -9
-2/3 or -0.67
8) 3/11 / -0.3 + (-1.2)(5/6)
(3/11) / -0.3 + (-1.2) (5/6)
(3/11) / -0.3 + (-0.1) (5/6)
(3/11) / -0.3 + (-0.1) (5/6)
-0.2
9) -x * -6 = -540
x = 90
10) x / -0.5 = 0.18
x = -0.09 or -9/100
11) -1/5x = -11/20
x = 2.2 or 11/5