Question

how to solve this equation 1/x=1/7​

Answer 1

Answer:

X=7

Step-by-step explanation:

1/x=1/7

Wr can take the reciprocal of this equation and it will become as follows :

X=7

Hence we can say x is 7

Verify:

1/7=1/7

Hence proved

Answer 2

$\bf \huge \colorbox {green} {Solution : - }$

$\bf \frac{1}{x} + \frac{1}{y} = \frac{1}{7}$

By the way ,

This is what we call Mirror formula where x is object distance , y image distance and 7 focal length of a concave mirror for parabolic Mirror .

Back to math , we get :

$\bf \frac{1}{y} = \frac{1}{7} - \frac{1}{x}$

$\bf y = \frac{7x}{x - 7} ,$

$\bf All\: couples \: of (x, \frac{7x}{ x - 7} )are \: solutions$

If x = 8 , y = 56 or (8 ,56)

If x =14 , y =14 or (14,14)

If x = 56 , y = 8 or ( 56, 8)

$\bf \underline {Therefore} : -$

All the integers ( x , y ) that satisfy the equation : y = 7 x / ( x - 7) are solutions.

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