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-11 minus -20 is 9
20 - 11 = 9
20 minus 9 is 11.
9 - (-11) = 20
-20
2 times a number minus 17 plus 20 times a number minus 9 is the same as 2x - 17 + 20x - 9 = 22x - 26
9 - - 6 + 20 = 35
9 - 20 / 4 + 16 = 9 - 5 + 16 = 20
It is an equation and the value of n is 9
37
10
20