Question

Evaluate the expression if x=-1 and y=6. 5x/x-y

Answer 1

To evaluate the expression for the given values of X and Y, all we need to do is to substitute the values.

It is important to remember that:

- The multiplication of a negative number by a positive number will always result in a negative number.

- The division of numbers with same signal (positive and positive, or negative and negative) will always result in a positive number.

`(5x)/(x-y)=(5*(-1))/(-1-6)=(-5)/(-7)=(5)/(7)`

From this, we conclude that the given expression is equal to:

`(5)/(7)`