2x+y=-5 dan 3x-2y=-11 dg metode substitusi beserta hp
tolong dijawab
tolong dijawab
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Verified answer
2x + y = -5y = -5 - 2x
3x - 2y = -11
3x - 2(-5 - 2x) = -11
3x + 10 + 4x = -11
7x = -21
x = -3
y = -5 - 2x
y = -5 - 2(-3)
y = 1
HP : {-3 , 1}