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-2x - 3y = 6 |x1
-x + 2y = 4 |x2
____________________
-2x - 3y = 6
-2x + 4y = 8
___________ -
(-7)y = (-2)
y =
y =
Di substitusi kn nilai y = , maka tentukan nilai x, diperoleh
-x + 2y = 4
-x + 2() = 4
-x + = 4
-x = 4 -
-x = -
-x =
x = -
Jadi nilai HP = {- , }