Question

a)3×y-4×y= b)6×y-7×y= c)-2ab-(-ab)= d)10mn(-5mn)= e)-6pq-3pq= f)-12pq-(-5ab)= g)-12pq-9pq= h)12×yz-c-3×yz=​

Answer 1

Explicación paso a paso:

a) 3y-4y=y

B)6y-7y= -y

c)-2ab+ab= -ab

d)10mn-5mn= 5mn

e) -9pq

F)-12pq+5ab

g)-21pq

h)12yz-c-3yz=(12yx-3yz)-c=9yz-c