+0  
 
-1
121
1
avatar+78 

done

 Mar 2, 2020
edited by rubikx2910  Apr 15, 2020
 #1
avatar+30637 
+3

If they intersect at the point (x, y, z) then you have:

 

7 - 2x = 8 + x

-3 + 5y = -1 - 4y

1 + z = -1

 

I'm sure you can take it from here.

 Mar 2, 2020

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