From the set {21, 29, 49}, use substitution to determine which value of x makes the equation true.
8(x - 20) = 304
A.
49
B.
none of these
C.
29
D.
21
To find the value of x that makes the equation true, we can substitute each value from the set {21, 29, 49} into the equation and see which one satisfies it.
For option A:
8(x - 20) = 304
8(49 - 20) = 304
8(29) = 304
232 = 304
Option A does not satisfy the equation.
For option C:
8(x - 20) = 304
8(29 - 20) = 304
8(9) = 304
72 = 304
Option C does not satisfy the equation.
For option D:
8(x - 20) = 304
8(21 - 20) = 304
8(1) = 304
8 = 304
Option D does not satisfy the equation.
Therefore, the correct answer is B. None of these.