Question 314409
Hey,
This shouldn't be too difficult.

So first all of the denominators have to be the same. So we must multiply each expression by something ont he top and bottom to get the same denominator.

Therefore:

the greatest common denominator is (x^2)+x

Therefore you need to multiply (1/x) by (1+x/1+x) so that the denominator is (x^2+x). You will get (1+x)/((x^2)+x) for the first expression.

For the second : 1/(1+x), you need to multiply the top and the bottom by x to get:

x/((x^2)+x)

Now that all of the expressions have the same denominator, we can change the equation to:

(1+x)+x=-3

And from here we get:

1+2x=-3    =>    2x=-4    =>   x=-2


I hope this helps!