Depends what the expression is. Just plug in 8 for y in the expression and that'll do it for you.
Chat with our AI personalities
5x=4012y=84124
y=8 y = 2x y = 2(4) <-- substitute 4 for x y = 8 <-- this is your answer
21
In the expression 5 + y + 8, y is a variable. We know how much 5 and 8 are, those are definite quantities. Only y has an unknown, and hence variable value.
If y = 3 then what is the value of: y + 8 = ? a number equal eight