SOLUTION: {2x+y=5 {4x+2y=6

Algebra ->  Sequences-and-series -> SOLUTION: {2x+y=5 {4x+2y=6       Log On


   

Question 308437: {2x+y=5 {4x+2y=6
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
If these are linear equations then:
{2x+y=5
y=-2x=5 (red line)
{4x+2y=6
2y=-4x+6
y=-4x/2+6/2
y=-2x+3 (green line)
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-2x+%2B5%2C+-2x+%2B3%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -2x +5 and -2x +3).
These lines are parallel thus no unique solution for x & y.