cuarta tarea del 1-4

1-r=(5/3)+(4/3)=2x
(1.67)+(1.34)=2x
3.1=2x
3.1/2=x
1.505=x

2-r=(6/7)(3/9)+3x=4-(17/5)
3x=-4+(17/5)-(6/7)(3/9)
3x=-4+3.4-(6/7)(3/9)
3x=-4+3.4-(18/63)
3x=-4+3.4-0.2857142
3x=-0.8857142
x=-0.8857142/3
x=-0.295238

3-r=(23/3)+(16/9)x=23x-12
12(23/3)=23x-(16/9)x
12(4.6)=23x-(16/9)x
55.2=23x-(16/9)x
55.2=23x-1.78x
55.2=21.22x
21.22/55.2=x
0.3844202=x

4-r=12x-18+(23/7)=(145/2)-4x
12x+4x=-18+(23/7)(145/2)
12x+4x=-18+(3.2857142)(72.5)
12x+4x=-18+238.21427
16x=220.21427
x=220.21427/16
x=13.763391

5-r=((14/2)(15/9)/(125/25))=17/3+(13/4)x
((14/2)(15/9)/(125/25))-17/3=(13/4)x
210/18/125/25-17/3=(13/4)x
5250/2250-17/3=15750-38250/6750=-22500/6750=(13/4)x
3.34=(13/4)x
3.34=3.25x
3.34/3.25=x
1.0276923=x

6-r=22-178+33/5-16x=147+(248/16)x
22-178+33/5-147=(248/6)x+16x
22-178+6.6-147=(248/16x+16x
22-178+6.6-147=15.5x+16x
-296.4=31.5x
-296.4/31.5=x
-9.4095238=x

7-r=(2)(-3)(5)+25x=(147/15)x-(248/43)(223/105)
(2)(-3)(5)+(248/43)(223/105)=(147/15)x-25x
(2)(-3)(5)+(5.7674418)(2.1238095)=(9.8)x-25x
-30+12.248947=9.8-25x
-17.751053=-15.2x
-17.751053/-15.2=x
-1.1678324=x

8-r=(45/7)/(198/26)+28x=13+(14/67)(222/111)
28x=-13-(14/67)(222/111)(45/7)/(198/26)
28x=-13-(0.2089552)(2)(1170/1386)
28x=-13-(0.2089552)(2)(0.8441558)
28x=-13-(0.3527814)
28x=-13.352781
x=-13.352781/28
x=-0.47685

9-r=48/5+(2/3)x=1657+345
(2/3)x=-1657-345(48/5)
0.67x=-1657-345(9.6)
0.67x=-13459.2
x=-13.459.2/0.67
x=-20088.358

10-r=(2)(-5)(-7)(-8)(9)+257896-1247-5x=951753+456
5x=-951753-456(2)(-5)(-7)(-8)(9)+257896-1247
5x=-951753-456-5040+257896-1247
5x=-700600
x=-700600/5
x=-140120