How do you solve this?
For this problem, they have given you most of the information you need. You have an equation and you have a point on the graph. All you have to do it plug the x and y values that they gave you into the equation and solve for c. We know x=0 and y=5 so we get 3(0)-c=2(5). Remembering order of operations, you need to multiply next which will give you 0-c=10. In order to make c positive you can multiply by -1 and the result is c=-10 :)