By what number must row 2 in the matrix 1 1 1 | 6
2 0 2 | -14
1 1 0 | 3

be multiplied for the matrix to change to

1 1 1 | 6
1 0 1 | -7
1 1 0 | 3

Scenario: susan wants to make 2 square flags to sell at a crafts fair. the fabric she wants to buy is 3 meters wide. she doesn't want any fabric left over. what's the least amount of fabric she should buy? question: which equation will susan solve her problem? note: let x represent the length of 1 side of the flag. options: 1) 2x^2 = 4x 2) 8 +2x = 2(4x) 3) 2 * 2 = 4 * 2 4) 4x^2 -2x = 0