
Andrew B. answered 06/26/13
Licensed Social Studies and Math Teacher can also tutor Science
Your equation is currently in the slope-intercept form y= mx + b
You want to change it to the Standard form Ax + By = C
To do this you want to make sure of two things:
1. All variables (x and y) as well as their co-efficients are on the same side of the equation.
2. The variable x is positive.
For your problem, y= -2x+8, you're going to simply move the x variable to the same side as the y variable.
To do that you will +2x to both sides of the equation, getting y + 2x = 8 -2x + 2x, and -2x + 2x = 0;
Since 2x is now positive you don't need to do anything else. Your answer is 2x + y = 8
Let me know if you have any questions