Question

{3x-y=1 {-2x+y=2. Solve

Answer 1

y = 3x-1
-2x+(3x-1) = 2
x-1=2
x=3
y=3(3)-1
y=8

Answer 2

{ 3 x - y = 1
-2 x + y = 2
------------------
x = 1 + 2

x = 3

For y:

3 x - y = 1

3 * 3 - y = 1

9 - y = 1

y = 9 - 1

y = 8

Hope this helps!.