Question

What are the solutions to the equation x- 7/x = 6 ?

A) x=-7 and x = 1
B) x=-6 and x = -1
C) x= -1 and x = 7
D) x= 1 and x = 6

Answer 1

Answer:none of these.

Try to substitute any of the given values for x and the result is false

Explanation:

Try x=1. 1-7 -6. Divide that by 1 and you get -6 = 6. False!

To solve the given equation, multiply sides by x to cancel the denominator. You get x-7 = 6x then subtract x from both sides to get -7=5x. Divide both sides by 5 to get x= -7/5

But if the original equation has an x^2 somewhere, there will be a different set of solutions.

Answer 2

x=-1 and x=7

Explanation:

C