2x-y=6
4x+18=2y
2 $\sqrt{\74}$
x=18÷100x(1770-x)
18+(-35)-(-26)-(+46)+52+(-25)=
x+√x=6/26
1269176
2799106
22975516
4024380
5451188
4391597
13360920.11401003
.10175029
14630096.11401003
(5-3i)^2/ (3+5i)
cos3x-sin3x/cosx-sinx
