Respuesta :

wegnerkolmp2741o

Answer:

x=4

Step-by-step explanation:

2^x-7=9

Add 7 to each side

2^x-7+7=9+7

2^x = 16

Change 16 to a power of 2  16 = 2^4

2^x = 2^4

The bases are the same, so the powers are the same

x=4

ghanami

Answer:

Step-by-step explanation:

hello :

2^x-7=9

add 7 : 2^x =16

2^x = 2^4

x=4

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