I need help. I have to write the linear equations in slope-intercept form.

The slope intercept form is express as follows
[tex]\begin{gathered} y=mx+c \\ \text{where} \\ m=\text{slope} \\ c=y-\text{intercept} \end{gathered}[/tex]Therefore,
3x - 5y = -20 can be represented as follows
[tex]\begin{gathered} 3x-5y=-20 \\ 3x+20=5y \\ \text{divide through by 5} \\ y=\frac{3}{5}x+\frac{20}{5} \\ y=\frac{3}{5}x+4 \end{gathered}[/tex]