Question

x+1/x+7=0 then find x-1/x+7

Answer 1

Answer:

$\frac{x-1}{x+7}=-\frac{1}{3}$                                  

Step-by-step explanation:

Given : $\frac{x+1}{x+7}=0$

To find : The value of $\frac{x-1}{x+7}$

Solution :

Step 1 - $\frac{x+1}{x+7}=0$

Step 2 -  Cross multiply,

$x+1=0$

Step 3 - Subtract 1 both side,

$x+1-1=-1$

$x=-1$

So, The value of x is -1.

Substitute the value of x in the expression $\frac{x-1}{x+7}$

$\frac{x-1}{x+7}=\frac{-1-1}{-1+7}$

$\frac{x-1}{x+7}=\frac{-2}{6}$

$\frac{x-1}{x+7}=-\frac{1}{3}$

Answer 2

Answer:

$value \: of\: \frac{x-1}{x+7}=\frac{-1}{3}$

Step-by-step explanation:

$Given \\\frac{x+1}{x+7}=0$

/* Do the cross multiplication,we get

$\implies x+1 = 0(x+7)$

$\implies x+1 = 0$

$\implies x = -1 ---(1)$

$Now, \\Value \: of \: \frac{x-1}{x+7}$

/*Substitute x=-1, we get

$=\frac{-1-1}{-1+7}\\=\frac{-2}{6}\\=\frac{-1}{3}$

Therefore,

$value \: of\: \frac{x-1}{x+7}=\frac{-1}{3}$

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