The sum of two integers is -61. The difference of two integers is -143. What are the two integers?

Question

chriss · Answer

x+y=-61
x-y=-143

If you add these together, you will eliminate y and have a solution for x.  You can then put the solution for x back into one of the original equations and solve for y.

lgbasallote · Answer

x = first
y= second

x+y = -61
x-y = -143

2x = -204

x = -102
y = 39

anonymous · Answer

-102 and 41

lgbasallote · Answer

oh yeah41..bad mathing lol

chriss · Answer

Luis' method is another good way to do it.  The first method used was elimination.  Luis's method is substitution.  Both work well.  I happened to choose elimination in this case because of the ease of elimination the y variable because they were equal opposites as written.

anonymous · Answer

Thanks to everyone! You're very much appreciated :)

chriss · Answer

You're welcome :)