Jawaban:
HP = {-2 , 3}
Penjelasan dengan langkah-langkah:
Metode substitusi
2x - 5y = -19 …(pers. 1)
3x + y = -3 –> y = -3 - 3x …(pers. 2)
substitusi pers. 2 ke pers. 1
2x - 5y = -19
2x - 5(-3 - 3x) = -19
2x + 15 + 15x = -19
2x + 15x = -19 - 15
17x = -34
x = -2
substitusi nilai x ke pers. 2
y = -3 - 3x
y = -3 + 3 × 2
y = -3 + 6
y = 3
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Jawaban:
HP = {-2 , 3}
Penjelasan dengan langkah-langkah:
Metode substitusi
2x - 5y = -19 …(pers. 1)
3x + y = -3 –> y = -3 - 3x …(pers. 2)
substitusi pers. 2 ke pers. 1
2x - 5y = -19
2x - 5(-3 - 3x) = -19
2x + 15 + 15x = -19
2x + 15x = -19 - 15
17x = -34
x = -2
substitusi nilai x ke pers. 2
y = -3 - 3x
y = -3 + 3 × 2
y = -3 + 6
y = 3
HP = {-2 , 3}