How would i write
10x + 8y + 300z = 39400
33x + 11y + 1000z = 118000
3x = y
As a augmented matrix
First rearrange all the equations so they are in standard form. (ax+by+cz = d)
list all the coefficients in a 3x3 matrix
Then add a 4th column with the numbers on the right of the = sign.