0
Anonymous
It is an expression that can be simplified to: 3-21n
Wiki User
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80 + 10 equals 90 so the missing value is zero, ie 80 + 10 = 90 - 0
x - 2 = 4x + 46-2 = 3x + 46-48 = 3xx = -48/3 or -16
12 plus 0 is 12
2
x = -6