1.- 25x-9.8x=-5.76-2.12+30=15.2x=22.12=x=22.12/15.2= x=1.45
2.- 28x=13+0.40-0.84=28x=12.56x=12.56/28= x=0.44
3.- 0.66x=1657+345-9.6=0.66x=1992.4 x=1992.4/0.66= x=3018.7
4. -5x=951753+456+1247-5040=-5x=948416=x=948416/-5
x=-189683.2
5.-1.66+1.33=2x=2.99=2x=x=2.99/2= x=1.49
6.-3x=4-3.4-0.28=3x=0.32=x=0.32/3 x=.10
7.-1.77x-23x=12-7.66=-21.23x=19.66=x=19.66/-21.23 x=-0.92
8.-12x+4x=72.5+18-3.28=16.=87.22=x=87.22/16 x=5.45
9.-2.32-5.66=3.25x=-3.34=3.25x=x=-3.34/3.25= x=1.02
10.- -16x+15.5x=147+178-22-6.6=-0.5=296.4=x=296.4/-0.5 x=-592.8
11.- -145x+1.37x=123987+456258-654852-951357=-143.62x=-1025964 x=-1025964/-143.62= x=7143.60