How can I write an equivalent expression for 4+3 (5 + x)

To write an equivalent expression for the following all that you would need to do is to add the values of 4 and 3 together

As these numbers come before the expression, and then distribute the final answer into the brackets.

Here it would be 35 + 7x.

This is the final answer.

Both of these are equal to each other one being simplified and the other being complex.