Write the slope intercept form of the equation of each line

Question

Write the slope intercept form of the equation of each line: x + 7y = 28. PLease explain how to do this. I know it is y=mx+b. 

Answer 1

x +7y = 28

 

Subtract x on both sides of equation.

 

7y = -x+28

 

Now divide by 7 on both sides of equation.

 

 

y = -(1/7)x+4