[23*-' +10] = 7=6
then
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Answers
Answered by
4
Step-by-step explanation:
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
Hope u can get through the process…
Answered by
3
Step-by-step explanation:
=> { ( 2^3x ) ÷ 2 + ( 20 ÷2 )} =42
=> { 2^(3x-1) +10 } = 42
{2^(3x-1) +10 } ÷7 = 6
Given ,
=> (2^3x +20)÷2 =42
=> (2^3x +20) = 84
=> 2^3x = 64
0
0
2
=> 2^3x = 2^6
=> 3x=6 { Exponents are equal when equal bases with certain exponents are equal. }
=> x=2
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