Cara:
= (5x + 2y) - (6x - 4y)
= 5x + 2y - 6x + 4y
= 5x - 6x + 4y + 2y
= -x + 6y
3. Sederhanakanlah (catatan "titik" atau "." berarti dikali)
1) (20x - 4y) : (-4)
= (20x - 4y) . (-¼)
= 5x + y
2) (5a - 8b) + 3(-a + 2b)
Cara:
= (5x + 2y) - (6x - 4y)
= 5x + 2y - 6x + 4y
= 5x - 6x + 4y + 2y
= -x + 6y
3. Sederhanakanlah (catatan "titik" atau "." berarti dikali)
1) (20x - 4y) : (-4)
= (20x - 4y) . (-¼)
= 5x + y
2) (5a - 8b) + 3(-a + 2b)
Editor: Iman Fakhrudin