Question

Given the algebra tiles model shown below, what is the BEST step to take next?

Image : http://imgur.com/tYkJcxm


A.
remove the two zero pairs from the left side
B.
add two zero pairs to the right side
C.
add one 1-tile to each side
D.
add one –1-tile to each side

Answer 1

@agreene

Answer 2

@NinjaDevo

Answer 3

Well, we want to get x by itself. So I would say A, remove the zero pairs from the left side because x+1-1+1-1 is the same thing as x+0+0, which is the same thing as just x. Does this make sense?

Answer 4

Somewhat, haha. I am going to post 3 more questions down below.

Answer 5

How can the equation x + 2 = 5 be solved using algebra tiles?
A.
add two 1-tiles to each side
B.
remove two 1-tiles from the left side
C.
remove two 1-tiles from each side
D.
remove five 1-tiles from each side

Answer 6

So, again we want to get x by itself because we are looking for x = something.
D wouldn't make sense, because we wouldn't get x = something.
Same thing with A.
And with B, our equation doesn't "balance out." Whatever we do to one side we have to do to the other, we can't just remove two 1-tiles from one side, we have to remove them from both sides.

So the only answer that makes sense is C.

Answer 7

If the solution of an equation is x = –2, what could the original equation be?
A.
x + 6 = 8
B.
x – 6 = 8
C.
x + 8 = 6
D.
x – 8 = 6