Enable text based alternatives for graph display and drawing entry

Try another version of this question

Write the augmented matrix as a system of equations
`[(-8,3,3,300),(-4,1,2,200),(-1,0,1,400)]`

`x` + `y` + `z =`

`x` + `y` + `z =`

`x` + `y` + `z =`

Get help: