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