1) 1. 4a+5a= 2. 13a-2a= 3 . -3a+4a= 4 .-7a-6a= 5 .3a-a 6. a+8a= 2) 1....

Question

1)

1. 4a+5a=

2. 13a-2a=

3 . -3a+4a=

4 .-7a-6a=

5 .3a-a

6. a+8a=

2)

1. 4b+5+3b-3b-3=

2.b-4+5b-7=

3.-7b-7+(b+7)=

4.(2b-4)-(3b-9)=

5.7b+3(b-1)=

6.4b-2(b+3)=

Answer 1

1)

1.4a+5a= 9а

2. 13a-2a=11а
3 . -3a+4a=1а
4 .-7a-6a=-13а
5 .3a-a=2а
6.a+8a=9а
2)
1. 4b+5+3b-3b-3=4b+2
2.b-4+5b-7=6b-11
3.-7b-7+(b+7)=
4.(2b-4)-(3b-9)=
5.7b+3(b-1)=
6.4b-2(b+3)=