$a_{b}$ if x-6 = 18 find x.
2x/x-1
266÷
Given a covering problem where the universal set is U = {1, 2, 3, 4, 5}, and subsets are S1 = {1, 2}, S2 = {2, 3}, S3 = {3, 4}, an...
find the 20th tern in the arithmetic sequence 2,8,14,20
12686÷4
find the sum of first 30 multiples of 23?
(12.4*1*〖99,8〗^0,82)/(273.61*0,634)*√((1*333)/44.097)
x + y + z = 6
x + 2z = 7
3x + y + z = 12
4-6+1