Solve for y:
2x+4y=8


Sagot :

2x + 4y = 8
-2x          -2x
4y = 8 - 2x
       4

y = 2/1 - 1/2x
* plung in y*

2x + 4 (2/1 - 1/2x) = 8
2x + 8 - 2x = 2

(2x - 2x = x cancle out)
 
8 = 2 

answer : no solution
2x + 4y = 8 -2x -2x 4y = 8 -2x 4 = 4 y = 2-2x