1-. (14/2)(15/7)= 210/14 (256/14)(357/19)= 91392/266
(210/14)/(91392/266)=0.04
0.04+35x=753951+456852-852963
35x=357839.96
x=357839/35
x=10223.99
2.- 5/3+14/7=35+42/21=77/21=3.6
4x=3.6
x=3.6/4
x=0.9


3.- 16x=16-115
16x= -99
x=-99/16
x=6.18


4.- -30+25x=9.8x-5.7-2.12
34.8x=-5.7-2.12-30
34.8x=-37.8
x=-37.8/34.8
x=-1.0


5.- 0.8+28x=13+0.4
28x=13+0.4-0.8
x=14.2/28
x=0.5


6.- 154x=1657+345
154x=2002
x=2002/154
x=13


7.- -5040+257896-1247-5x=951753+456
5x=-951753+456+5040-257896+1247
5x=-1202960
X= -1202960/5
x= -240581.2


8.- 9.9x=23x-12
9.9x+23x=33.2x
33.2x=-12
x=-12/33.2
x= 0.3


9.- 12x-18+3.2=6-4x
16x= 18+3.2+6
16x= 27.2
x= 27.2/16
x= 1.7


10.- 1.1+3x=4-3.4-1.1
3x=-0.5
x=-0.5/3
x= -0.1