Simplify this expression.
y+2y+3z
A. 2y+3z
B. 3y+3z
C. 2y^2+3z
D. 6yz
Is the answer A?
No.
y + 2y = ?
So the answer is C? Because there is 2 y's.
Why did you square 2y?
Because there are 2 y's...
two y's = 2y
Do you mean ^2
No.
Let's say that y = 3
2y = 2 * 3 = 6
We don't square anything
maybe B because 2y+y=3y+3z right?
Which is it? B or D?
No, the answer is not A. Let's simplify the expression step by step to find the correct answer.
The expression to simplify is: y + 2y + 3z.
First, we can combine the like terms - y and 2y since they both have the variable "y". Adding y and 2y gives us 3y.
So now our expression becomes: 3y + 3z.
There are no like terms left in this expression, so it is already simplified.
Therefore, the correct answer is B. 3y + 3z.