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Simplify this expression.

y+2y+3z
A. 2y+3z
B. 3y+3z
C. 2y^2+3z
D. 6yz
Is the answer A?

9 answers

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?
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