Answer:
[tex] y=-2x+\dfrac{15}{2} [/tex]
Step-by-step explanation:
You need to solve for y and put it in the y = mx + b form.
[tex] 20x+10y=75 [/tex]
Divide all terms by 5.
[tex] 4x+2y=15 [/tex]
Subtract 4x from both sides.
[tex] 2y=-4x+15 [/tex]
Divide both sides by 2.
[tex] \dfrac{2y}{2}=\dfrac{-4x}{2}+\dfrac{15}{2} [/tex]
Simplify.
[tex] y=-2x+\dfrac{15}{2} [/tex]