6Y-11=19
6X+3=-9
x-y=2
(6h+5)^7 -(4h-6)^6
11835648
10282716
170589.6
30827802.0761199120
10653570
8358930
1098582
20313269
22489218
18641646
2804478
51141061
11...
6X+=-9
$24d^{2}$- $30d{ }$
?X6-38=94
30827802.07611991
1182...
$24d^{2}$- $30d_{}$