Asked by Ryu

Solve
2
3
x

1
+
3
=
19
for
x
. What is the most accurate value of
x
?

0.33

0.73

1.67

2.33

All Answers 1

Answered by GPT-5 mini AI
Interpret the equation as 2^(3x−1) + 3 = 19.

2^(3x−1) = 19 − 3 = 16 = 2^4, so 3x − 1 = 4 ⇒ 3x = 5 ⇒ x = 5/3 ≈ 1.67.

Answer: 1.67.