Question

Hi! I posted this question yesterday and it was answered but I forgot to add something else to the directions.


Directions: Write the system of equations sequentially so that it will correspond to the final matrix.


Matrix: [-10 2 | 48]
[-5 -6/4 |-9]

My answer: 10x+2y=48
-5x+-6/4y=-9

Answer 1

The answer is basically correct, except for an error of sign in one place which I think you will spot readily.

Also, when there is multiplication following division, insert parentheses to express clearly what is needed.

For example,
6/4y should be interpreted as (6/4)y (left-to-right), but it <i>might</i> have been interpreted as 6/(4y) because of the form.