## llroberts43 one year ago I am stumped on the slope intercept form. 3x-4y = 12. I don't understand why the answer is 3/4x - 3. How does it become x?

1. Nnesha

you should keep the x slope intercept form is y=mx+b where m is slope and b is y-intercept

2. Nnesha

you need to solve for y$\huge\rm 3x-4y=12$ move the 3xto the right side and then -4

3. Nnesha

ho would you cancel out the 3x from the left side ?

4. llroberts43

3x - 4y = 12 3x - 3x -4y = -3x +12 -4y and then I don't know what do next.

5. Nnesha

great! :=)

6. Nnesha

now how would you cancel out the -4 from the left side ?

7. llroberts43

4y/4?

8. Nnesha

nice but don't forget it's negative so -4 :=)

9. llroberts43

Yes I saw that but I had already hit post. So I've cancelled out 4 but I still don't understand how the answer becomes 3/4x -3. Where did the 12 go?

10. Nnesha

$\huge\rm y=\frac{ 3 x}{ 4 }+\frac{ 12 }{ -4 }$ 12/-4 = ? you can divide it right!

11. llroberts43

Oh....that would equal -3. Right in front of me, thank you!!

12. Nnesha

:=) my pleasure great job!