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1_ (3//)*(2/5)-(16/8) x
x= -3
(3/7)*(2/5)= 15*14 = 29
35 35
29/35 - (16/8)(-3/1)=-48/8
29/35 - 48/8 = 232-1680= 1448 = 4 -362/70
280 280

2_15-17*33 x -9 x
x= 5
15-17*185-45=
-2*185
183-45= 138

3_((9/5)(5/8)) x * (2/3) x * 54
x=-4
(9/5)(5/8) (-4/1)*(2/3) -4* 54=

45/40 -4/1 * 2/3= -12*2=-10
3 3
(45/40)(-10/3)=(-450/120)(-50/1)= 22500/120= 2_-11250/60


4_(18/7) / ((17/5)(8/9)) x * 19=
x=2
18/7 / (17/5)(8/9) 2* 19
18/7 / (17/5)(8/9)= 136/45
(18/7)(136/5)= 90/952
(90/952)(21/1)= 1890/952 = 7= 270/136

5_ ( 22/16)-(17/9) * 33 x - 67-6x=
x= -2
(22/16)-(17/9) * 33 (-2) -67 - 6 (-2)
( 22/16)-(17/9)= 198 -272/144= -74/144
-74/144 * -66-67--12= -121

(-74/144)*(-121/1)= -74 * -17424/ 144= -17498/144

6_23x - 185x *215x - 13*144=
x=7
23(7)- 185(7)*215(7)- 13*144
61-1295*1505
371-13
358*144= 502

7_(42/15)*(33/9) - 28 x=
x= 8
(42/15)*(33/9)= 278* 495/135=873/135
873/135 - 28(8) = 224/1
(873/135) -( 224/1)= 871 - 30240/ 135 = -29369/135

8_(25/4)(6/9) * 1/2 - 16x -89 * 46
x= -5
(25/4)(6/9) * 1/2 - 16(-5)-89*46
(150/36)*(1/2)= 300*36/72=336/72
336/72 - 16(-5)
-80-89*46=-123
-169*46=
(336/72)-(123/1)= 336-8856/72= -8520/72= 3= -2840/24

9_ ((24/) 7 (19/ 7) x *13x - 157x * 79
x_ 7
(24/5) 7 (19/7) 7*13(7)-157(7)*79
(168/95)(-922/1)= 168/-87590 = 2- 84/-43795

10_((156/37) 7 (456/89)) x * 23x - 179=
x= 0
(156/37) 7 (456/89) 0 *23(0)-179=
13884/16872 o*0-179= -179
(13884/16872)(-179/1)= 13884/-3020= 4=3471/-755