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c) 1
d) 2
e) 3
2a) sejenis
b) tdk
c) sejenis
d) tdk
e) sejenis
3a) 8p + 3p
= (8 + 3)p
= 11p
b) -6p + 5p
= (-6 + 5)p
= -p
c) 7x - 5y + 4x + 3y
= 7x + 4x - 5y + 3y
= 11x - 2y