50 = 19x - 3
((e or f) and m) and ((n or o) or (((¬n or (¬o and p)) and ¬((s or t) and ¬((¬e and ¬f) or ¬m or (n and o) or (n and ¬p) or q))) a...
36k to #7.20
65x = 64x + 2
2q-5=2/3
x(x-1)=1225
R={(x,y):x⋅y≤1}
(x+y)²+2(x+y)+1 is equivalent to
7^2n-2 / 7^2 = 49^2
9x - 3 = 60