Question

0=0 let's write it in this way 20-20=25-25 let's take 4 common from LHS and 5 from RHS therefore, 4(5-5)=5(5-5) 4=5 2+2=5 (how?) where I am doing mistake?​

Answer 1

Answer:

20-20=25-25

Taking 5 common from LHS and RHS:-

5(4-4)=5(5-5)

Cancel 5 on both sides:-

(4-4)=(5-5)

0=0

Hence Proved......