find the solution set of
2x+2y=1
873570
406875
344245
988546
12th term of tn=8-4n
584474
686700
7+10 4×10+45÷5
(3+root3)+(1+root27)root3
1594280
30063426
24527150
4518786
5485396
3882779
11766464
10884402
2 to the power of 3 times 2 to the power of 7
1 divided by 5/7