tolong yg di lingkari jawab beserta caranya...... oke

1) (3b - bx) / (cx -3c)
= b (3 - x) / c (x - 3)

3) 3 / (x + 1) + 3 / (x - 1)
= ( 3 (x + 1) + 3 (x - 1) ) / (x -1) (x+1)
= ((3x + 3) + (3x - 3)) / (x-1) (x+1)
= (6x) / (x² - 1)

5) 4a / (3x) - 4 / (2x)
= ((2x) (4a) - (3x) 4 ) / (3x)(2x)
= (8xa - 12x) / 6x²
= 4x (2a - 3) / 6x²

7) (3x) / (2x) × (x-4) / 6x
= 3x (x - 4) / (2x) (6x)
= (3x² -12x) / 12x²
= 3x (x - 4) / 12x²

9) ( x²y³ ) / 3x : (18xy) / 6
= (x²y³ ) / (3x) × 6 / (18xy)
= 6x²y³ / (54x²y)