There is no unknown term.
It is x = +/- 2 depending on whether the second term in the equation is -12x or +12x.
14
It is -13.
No, .031 is not legally intoxicated.
The term .031 may indicate the carat weight of the stone. Without a context it is uncertain, however.
12x-8y
If you mean: (12x-3)(12x+3) then it is 144x^2 -9
GCF = 12x.24x = 2(12x)36x3 = 3x2(12x)
2*2 - 12x +16 =0 4 - 12x +16 =0 -12x + 16 +4 =0 -12x + 20 =0 -12x = -20 x = 1.666666667
5/4x+7/12x is the same as 15/12x+7/12x = 21/12x
2(6x + 10) is an algebraic expression in one unknown variable. It is not capable of doing anything.
6-2x-8+3+12x+4y 10x+4y+1 Note that - -3 = +3 and that - -4y = +4y