Answer:
[tex]y=\frac{3}{7}x+4[/tex]
Step-by-step explanation:
[tex]3x-7y=-28[/tex]
In order to isolate -7y we need to subtract 3x on both sides.
[tex]-3x+3x-7y=-28-3x[/tex]
[tex]-7y=-3x-28[/tex]
We need our variable y to be alone and positive, therefore, we need to eliminate -7, to do this, we can divide by -7
[tex]\frac{-7y}{-7} =\frac{-3x}{-7}-\frac{28}{-7}[/tex]
[tex]y=\frac{3x}{7}+4[/tex]
