Answer:
4-d=8
Step-by-step explanation:
First, you must know what a mathematical sentence and a variable is. A mathematical sentence is equivalent (same) as an equation.
To be an equation/mathematical sentence,
You need the following:
~ Numbers/variables
~ Equal sign
A variable is just an unknown number (It's still a number, you just don't know what it is yet- think- VARI is the same meaning as vary, the number can vary.)
Let's look back at the problem.
4-d=8
Has an equal sign
Has both numbers (remember a variable is still counted as a number)
So there's one you missed!
4-v, no, as there is no equal sign.
6, no, it's just a lone number.
5g, means 5xg, but there is no equal sign-no.
So there you have it. I hope this helped you!!! ^^
