10 plus 9 plus 11 plus 12 plus 8
x = -6
11 plus ref makes 12.
3 + 11 + 11 + 11 + 12 + 13 + 15 + 15 + 16 + 17 + 19 = 143
40
Expand z plus 11 times z plus 11 = (z+11)(z+11) = z2 + 22z + 121.
11 + 4x
8+11= 8+11
10 plus 1 is 11.
11 + 110 + 1100 = 1221
-25
-2x + 11 + 6x = 4x + 11