1-e^(-x/1210)=0,05
27.36
0.06
2X-Y=17
X+Y=112
(11a-2b)(4c+6d+15)-(-13b-3c)(20-11a-7d)
0.8 recurring as a fraction
t=s+24
t=5s
1.7616+1.7616
1+1
1=
x-3/x+x-1/x+2=29/20
