Question 1175917
<pre>
Instead of doing it for you, I'll do one exactly like it,
step-by-step.  Just follow it as a guide.

I'll do this one instead:

7x-13y = 73
-x-7y=25

Solve the second equation for x

-x-7y=25
   -x=25+7y
    x=-25-7y   

Substitute (-25-7y) for x in the first equation

7x-13y = 73

7(-25-7y)-13y = 73

 -175-49y-13y = 73
     -175-62y = 73
         -62y = 248
            y = 248/(-62)
            y = -4

Substitute (-4) for y in

    x=-25-7y
    x=-25-7(-4)
    x =-25+28
    x = 3

Now do yours step by step the same way.

Edwin</pre>