mia17766 mia17766
  • 02-01-2019
  • Mathematics
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I need help with these ASAP thanks

I need help with these ASAP thanks class=

Respuesta :

FRESHPRNCE
FRESHPRNCE FRESHPRNCE
  • 03-01-2019

Answer:

a. [tex]y=\frac{2x}{x-5}[/tex]

b. [tex]y=\frac{2-4x}{x-3}[/tex]

Step-by-step explanation:

change switch x and y and then solve for y.

a. [tex]x=\frac{5y}{y-2}[/tex]

[tex]x(y-2)=5y[/tex]

[tex]xy-2x=5y[/tex]

[tex]xy-5y=2x[/tex]

[tex]y(x-5)=2x[/tex]

[tex]y=\frac{2x}{x-5}[/tex]

same for b.

b. [tex]x=\frac{3y+2}{y+4}[/tex]

[tex]x(y+4)=3y+2[/tex]

[tex]xy+4x=3y+2[/tex]

[tex]xy-3y=2-4x[/tex]

[tex]y(x-3)=2-4x[/tex]

[tex]y=\frac{2-4x}{x-3}[/tex]

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