Question

solve by elimination;
x+2y=-15
-x-2y=15
Please/Thanks:)

Answer 1

Add both equations

Answer 2

o=zero XD

Answer 3

That will eliminate both x and y

Answer 4

Sorry Im not smart!:( and thanks that helps!

Answer 5

there the same line because you end up with something that's always true.. 0=0

Answer 6

x=y=-5 XD

Answer 7

The second equation is the same as that of the first but expressed differently. So you have only one equation for two unknowns. The system has infinitely many solutions. that is i can assume any value of x and get y =(15-x)/2 .