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Help Me, please

 

Exercise: Solve the exponential equation, rounding decimal answers to the thousands place.

 

4x-2=2x

 

x=

 Mar 27, 2018
 #1
avatar+111329 
+1

4x-2  = 2x

 

The idea here is to make the bases equal  and then solve for the exponents

 

(22)x-2  = 2x

 

(2)[2(x-2)]  = 2x

 

(2)2x - 4  = 2x

 

The bases are the same....solve for the exponents

 

2x - 4  = x        add 4 to both sides.....subtract x from both sides

 

x  =  4

 

 

cool cool cool

 Mar 27, 2018

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