ba1029
ba1029 ba1029
  • 09-09-2020
  • Mathematics
contestada

Solve for x???????????

Solve for x class=

Respuesta :

xKelvin
xKelvin xKelvin
  • 09-09-2020

Answer:

[tex]x=3/2=1.5[/tex]

Step-by-step explanation:

So we have the equation:

[tex]49=7^{2x-1}[/tex]

Note that 49 is the same as 7 squared. Thus:

[tex](7)^2=(7)^{2x-1}[/tex]

Since they now have the same base, the exponents must be equal to each other. So:

[tex]2=2x-1[/tex]

Add 1 to both sides:

[tex]3=2x[/tex]

Divide both sides by 2:

[tex]x=3/2=1.5[/tex]

And we're done!

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