Question

3b+(5a-7b)=

-(8a-4)+4=

(2+3x)+(7x-2)=

3(8m-4)+6m=

15-5(1-a)-6a=

Answer 1

3b+(5a-7b)=3b+5a-7b=5a-4b

-(8a-4)+4=-8a+4+4=8-8a

(2+3x)+(7x-2)=2+3x+7x-2=10x

3(8m-4)+6m=24m-12+6m=30m-12

15-5(1-a)-6a=15-5+5a-6a=10-a