True. If an expression calls for Y=8, it means that you will replace the letter Y with the number 8 in order to solve the expression.
True. If an expression calls for Y=8, it means that you will substitute the value of Y with the number 8 in order to solve the expression.
True. If an expression calls for Y = 8, it means that wherever you see the letter "Y" in the expression, you will substitute it with the value of 8. This is known as "assigning a value to a variable." By replacing the variable with the assigned value, you can then evaluate the expression using the given value.
