Question

can you solve
subtract
(a-b) from ( a+b)
2)=a(b-5)from b(5-a)
please solve these 2 question for me

Answer 1

hello dear,
(1)  (a+b)-(a-b)=a+b-a+b
=>a-a+b+b=2b

(2)b(5-a)-a(b-5)

=(b*5-b*a)

=5b-ab

-a(b-5)=(-a*b-a*5)=-ab+5a

5b-ab-(-ab+5a)

=5b-ab+ab-5a

=5b-5a

i hope you understand dear, :-)