amberramirez81p7bnoz amberramirez81p7bnoz
  • 03-04-2020
  • Mathematics
contestada

7/2x+1/2x = 18+ 9/2x

Respuesta :

2Kit4Kat
2Kit4Kat 2Kit4Kat
  • 03-04-2020

Answer:

x=-36

Step-by-step explanation:

Add the 7/2x +1/2x to be 8/2x which means that it'll be 4x=18=9/2

then subtract 9/2x on both sides so itll be

[tex]4x=18+\frac{9}{2} x[/tex]

-9/2x       -9/2x

[tex]-\frac{1}{2} x=18[/tex]   because if you do 8/2-9/2 it's -1/2

then multiply the reciprocal to both sides so

[tex](\frac{2}{-1})(-\frac{1}{2}x)=(\frac{2}{-1})(18)[/tex]

which then cancels out -1/2 and makes it

x=-36

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