sederhanakanlah bentuk aljabar berikut

a) 7x + 8x = 15x

b) 12x- 4x +8x =
= 8x - 8x = 0

c) 4(3p-2)+5p
= 12p - 8 +5p
= 17p - 8

d) 8-3(2p+4)
= 5(2p+4)
= 10p + 20