Then the original price was $42
Because it is half off we multiply 21 by 2 and get 42.
The degree of this polynomial is 4!!!
Answer: -3.66666666667 or negative three and six tenths repeating.
(x + 12) = (x + 14) - 3
subtract 12 from each side
x = x + 14 - 3 - 12
Now if we subtract x from each side we see that x - x = 0. Combine the terms left over and we have -1, so
0 = -1
The answer is NO SOLUTION
