7y+9(y-2)

6(a+1)+8(3+a)



Sagot :

7y+9(y-2)
=7y+9y-18
=16y-18

6(a+1)+8(3+a)
=6a+6+8a+24
=14a+30
7y+9(y-2)
7y+9y-18
16y-18

6(a+1)+8(3+a)
6a+6+24+8a
14a+30