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
To solve for y in the equation 2 x + 4 y = 8 , we isolate y and simplify to get y = 2 − 2 1 x . This expresses y in terms of x .
;