Which expression is equivalent to y−z
-(z^2-y^2)/(y+z) is one. There are many others, of course.
The expression y - z can also be written as -z + y.
To simplify the expression y−z, we can apply the rules of algebra. The subtraction operation is the inverse of addition, so we can rewrite y−z as y+(-z).
Now, if we want to simplify further, we need more information. If y and z are numbers, then y+(-z) is equivalent to y-z. However, if y and z are variables or unknowns, then we can't simplify any further since we don't have specific values for y and z.
Therefore, the expression y−z is already its simplest form.