No 7 tentang aljabar tolong dijawab secepatnya besok di kumpul

A = 3x + 5y
B = 4x - 2y

a) A + B = (3x + 5y) + (4x - 2y)
= 7x - 3y

b) A - B = (3x + 5y) - (4x - 2y)
= ( -x + 7y)

c) 2A + B = 2(3x + 5y) + (4x - 2y)
= (6x + 10y) + (4x - 2y)
= 10x + 8y

d) A - ½B = (3x + 5y) - ½(4x - 2y)
= (3x + 5y) - (2x - y)
= x + 6y

e) 4A + 3B = 4(3x + 5y) + 3(4x - 2y)
= (12x + 20y) + (12x - 6y)
= 24x + 14y

f) 3A - 1½B = 3A - 3/2 B
= 3(3x + 5y) - 3/2(4x - 2y)
= (9x + 15y) - (6x - 3y)
= 3x + 18y