Question

Which one of the following reasons does NOT explain why 4x+5y≠9xy?

Answer 1

The terms 4x and 5y has different variable present in it.
`4x + 5y \\eq 9xy`

Solution:

Given that,

`4x + 5y \\eq 9xy`

The reason is:

When we are adding terms which has exactly the same variables, we must add the constants and let the result stand with variable

Which means,

4x + 10x = 14x

But,

We cannot add terms that has different variable

Which means,

4x + 5y

Here, both the terms 4x and 5y has different variable present in it. Hence they cannot be added together

`4x+5y\\eq 9xy`