Question

1) 13-(7b+5)
2) (3a+2)+(4a-7)
3) -(4a-1)+(a-3)

Answer 1

1) 13-(7b+5)=13-7b-5=8-7b
2) (3a+2)+(4a-7)=3a+2+4a-7=7a-5
3) -(4a-1)+(a-3)=-4a+4+a-3=1-3a