<PRE><B>Question 1125259</B>
1. -2x + 3y = 25
-2x + 6y = 58
------------------------ Subtract
==========

2. 8x + 13y = 179
2x - 13y = -69
------------------------ Add
=============

3. 2x + 7y = -7
5x + 7y = 14
----------------

4. 6x + 3y = 0
-3x + 3y = 9
---------------------

5. 3x - 8y = 32
-x + 8y = -16
------------------

6. 5x + 7y = -1
4x - 2y = 22
-----
Multiply each eqn by something to make the coefficients of either x or y the same, then subtract.
</PRE>