Sederhanakanlah, (1) (a + 7b) + (4a – 3b), (2) (–6x² + 5x – 7) + (3x² – 5x), (3) (4x – y) + (2x + 3y), (4) (3x – y – 5) + (–2x – 4y + 3)

Sederhanakanlah.

(1) (a + 7b) + (4a – 3b)

(2) (–6x² + 5x – 7) + (3x² – 5x)

(3) (4x – y) + (2x + 3y)

(4) (3x – y – 5) + (–2x – 4y + 3)

Jawaban

(1) 5a + 4b

(2) –3x² – 7

(3) x + 2y

(4) x – 5y – 2