mridahingmire mridahingmire
  • 11-01-2019
  • Mathematics
contestada

Excercise 7A
x-2/x-4=x+4/x-2

Respuesta :

rejkjavik rejkjavik
  • 21-01-2019

Answer:

[tex]x=5[/tex]

Step-by-step explanation:

We are given

[tex]\frac{x-2}{x-4} =\frac{x+4}{x-2}[/tex]

Since, we have to solve for x

so, we will try to get rid of x on any one side

We can cross multiply both sides

[tex](x-2)\times (x-2)=(x-4)\times (x+4)[/tex]

now, we can simplify it

[tex]x^2-4x+4=x^2-16[/tex]

Subtract both sides by x^2

[tex]x^2-4x+4-x^2=x^2-16-x^2[/tex]

[tex]-4x+4=-16[/tex]

Subtract both sides by 4

[tex]-4x+4-4=-16-4[/tex]

[tex]-4x=-20[/tex]

Divide both sides by -4

and we get

[tex]x=5[/tex]


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