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Verified answer
Bab Persamaan GarisMatematika SMP Kelas VIII
ax + by = c, sejajar, (p, q)
ax + by = ap + bq
2x + y = 4, sejajar, (4, 5)
2x + y = 2 . 4 + 1 . 5
2x + y = 8 + 5
y + 2x = 13