Question

X - y = 2
x + y = 1
berapa ya

Answer 1

X-y = 2
x+y= 1
----------- -
-2y = 1
y = 1
--- = -0,5
-2

x-y = x-(-0,5) = 2
x = 2 - 0,5
x = 1,5
Jadi,x = 1,5 dan y = 0,5