Answer:
Explanation:
1. The equation (-2x + 4y = 3) was supposed to be the product of (-x + 2y = 3) and 2. But the correct result is: (-2x + 4y = 6).
2. The sum of (2x-5y=-3) and (-2x+4y=3) is NOT (-9y = -9). It is (-y = 0). But even this is useless since from point 1, the second equation is incorrect. There are actually two errors in this step.
a) -5y + 4y = -y, not -9y
b) -3 + 3 = 0, not -9
3. Re-Do the problem
2x - 5y = -3
-x + 2y = 3
-------------------------
2x - 5y = -3
-2x + 4y = 6 [Multiply by 2 and add to the first]
-y = 3
y = -3
If y = -3, then 2x - 5y = -3 becomes:
2x - 5(-3) = -3
2x + 15 = -3
2x = -18
x = - 9
The solution is (-9,-3)
See the attachment