Question

Please be quick !!

Garcia is modeling the equation 5x + (-1) = -2x +6 by using the following tiles:

5 positive x-tiles and 1 positive unit tile to represent 5x + (– 1)
2 negative x-tiles and 6 positive unit tiles to represent –2x + 6

Which statement explains Garcia’s error?

A. Garcia should have used 5 positive x-tiles and 1 negative unit tile to represent 5x + (–1).

B. Garcia should have used 2 positive x-tiles and 6 positive unit tiles to represent –2x + 6.

C. Garcia should have used 1 negative x-tile and 5 positive unit tiles to represent 5x + (–1), and he should have used 6 positive x-tiles and 2 negative unit tiles to represent –2x + 6.

D. Garcia should have used 5 negative x-tiles and 1 positive unit tile to represent 5x + (–1), and he should have used 2 positive x-tiles and 6 negative unit tiles to represent –2x + 6.

Answer 1

A

Explanation:

Garcia modeled it and got this answer

Answer 2

option-A

Explanation:

We are given

Garcia is modeling the equation 5x + (-1) = -2x +6 by using the following tiles

(i)

5 positive x-tiles and 1 positive unit tile to represent 5x + (– 1)

(ii)

2 negative x-tiles and 6 positive unit tiles to represent –2x + 6

we know that

5 positive x-tiles and 1 positive unit tile to represent 5x + ( 1)

while we are given 5x+(-1)

So, there is 1 negative unit tiles

so, option-A