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It is an expression that can be simplified to: 3-21n
It is 9x + 2.
yea yea yea
i dont know
80 + 10 equals 90 so the missing value is zero, ie 80 + 10 = 90 - 0
3x + 8 = 4x + 23x - 4x = 2 - 8-x = -6x = 6
It is an expression that can be simplified to: 3-21n
If you mean: 3x -7 +4x = 28 then the value of x works out as 5
It is 9x + 2.
yea yea yea
HCN(aq) ==> H^+(aq) + CN^-(aq)Ka = [H+][CN-]/[HCN] and the value can be looked up in a book or on line.
i dont know
7x + 9 = 6x + 17 7x - 6x = 17 -9 x = 8
80 + 10 equals 90 so the missing value is zero, ie 80 + 10 = 90 - 0
16
It is f(x) = -x2 or (-x)2, whichever you intended.
x - 2 = 4x + 46-2 = 3x + 46-48 = 3xx = -48/3 or -16