Respuesta :

09pqr4sT

Answer:

[tex]x=5/7[/tex]

Step-by-step explanation:

[tex]7^{4x} =\frac{7^{5} }{7^{3x} }[/tex]

[tex]7^{4x} *7^{3x}=7^{5}[/tex]

[tex]7^{7x} =7^{5}[/tex]

[tex]7x=5[/tex]

[tex]x=5/7[/tex]

mhanifa

Answer:

x=5/7

Step-by-step explanation:

  • (7ˣ)⁴= 7²*7³/7³ˣ
  • 7⁴ˣ= 7⁵⁻³ˣ
  • 4x=5-3x
  • 4x+3x=5
  • 7x=5
  • x=5/7