Algebraic expression

Question

What is the algebraic expression for the sum of a number and 20 is -13

Answer 1

Greetings! Lets solve this shall we ?!

Lets convert some words into math !

So,

The sum means '+'

A number means 'x'

is means '='

So, the sum of a number and 20 is -13 means x + 20 = -13.

I hope this helps!