Answer:
1. x = 2 and y = 4
2.
|
|
2x – 3y |
= |
-8 |
|
multiplying the second equation by –1 |
-2x - y |
= |
-8 |
|
add the equations |
-4y |
= |
-16 |
|
|
y |
= |
4 |
|
|
|
|
|
|
replace this in equation 2 |
2x + 4 |
= |
8 |
|
|
2x |
= |
4 |
|
|
x |
= |
2 |