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]


Answer Link

Otras preguntas

fraction: least to greatest...2/3, 9/16, 0.52
what is 4/5+11/12= ?
I am between 24 and 34. You say my name when you count by twos from zero. You say my name when you count by fives from zero. What number am I?
fraction: least to greatest...2/3, 9/16, 0.52
What is an example of taking a chance
What is an example of taking a chance
I am between 24 and 34. You say my name when you count by twos from zero. You say my name when you count by fives from zero. What number am I?
Which of the following reasons complete the proof in the picture below A.definition of complementary B.substitution property of equality C.definition of suppl
______________ was a Baptist minister from Atlanta whose stirring speeches and belief in the power of nonviolence shaped the course of the national Civil Rights
Anybody good at analogies?