Question

If{2^(3x-1) +10}+7=6, then x=
(a) -2
(b) 2
(C) 1
(d) 0​

Answer 1

Answer:

c) 1

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Answer 2

2^(3x-1)+10=7×6=42

=> 2^(3x-1) = 32

=> 2^(3x-1) = 2^5

As LHS IS HAVING SAME BASE AS THAT OF RHS therefore, we can now easily compare the powers

Therefore, => 3x-1 = 5

=> 3x = 6

=> X = 2

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