Wat is de oplossing van
de exponentiële vergelijking

5x+1 + 5x+2 = 2x+2 + 2x+3
A.   1
B.   − 1
C.   3
D.   − 3
E.   6
A    B    C    D    E 

[ 6-7770 - op net sinds 15.11.14-(E)-27.10.2023 ]

Translation in   E N G L I S H

What is the solution of
the exponential equation

5x+1 + 5x+2 = 2x+2 + 2x+3
A.  
B.  
C.  
D.  
E.  

Oplossing - Solution

  5x+1 + 5x+2 = 2x+2 + 2x+3
⇔ 5.5x + 25.5x = 4.2x + 8.2x
⇔ 30.5x = 12.2x     / : 6
⇔ 5.5x = 2.2x
⇔ \(\frac{5}{2}\) = \(\frac{2^x}{5^x}\)
⇔ \(\frac{5}{2}\) = (\(\frac{2}{5}\))x
⇔ x =