If 3 raised to the 2 x plus 1 power is equal to 3 raised to the x plus 5 power , what is the value of x ?
Answer
A
6
B
4
C
2
D
3
Explanation
Both sides have the same base, 3, so their exponents must be equal: 2x + 1 = x + 5. Subtract x and then subtract 1 to get x = 4. The correct choice is 4.
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