kellerpaula kellerpaula
  • 22-03-2020
  • Mathematics
contestada

Solving Exponential Equations (lacking a common base)
7^x-2=7

Respuesta :

amna04352
amna04352 amna04352
  • 22-03-2020

Answer:

x = 3

Step-by-step explanation:

7^(x-2) = 7¹

Equate powers

x-2 = 1

x = 3

Answer Link
Larrysammz
Larrysammz Larrysammz
  • 22-03-2020

Answer:

x=3

Step-by-step explanation:

7^x-2=7

  • 7 is equal to 7^1 as it is equals to 7

7^x-2=7^1

  • eliminating the powers

x-2 = 1

  • add 2 to both sides

x = 1+2 = 3

lets check the answer

7^x-2=7

7^3-2=7

7^1 = 7

7=7

LHS = RHS

Answer Link

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