Question

can you prove it
19-1=20?​

Answer 1

using roman number.

19=XIX

1=I

XIX-I=XX

XX=20

so it's proved

Answer 2

Answer:

19-1= 20

Solution:

This is a riddle that we need to solve.

1. We can multiply both the sides with zero to equalise them.

2. We can use roman numbers to prove this.

19 is written as XXX

1 is written as I

20 is written as XX

So, we can write it as:

XIX - I = XX

Hence, it is proved that 19-1= 20.