Question

How many solutions does this system of equations have?

x+y= -4

x -y= 0

Answer 1

@algebra21 Try solving the second equation for either x or y (doesn't matter which-you pick!) Then substitute that in the first equation (you will only have one variable to deal with then in that equation)

Answer 2

oh number of solutions
easier! lol

Answer 3

well we know this isn't the same line!

Answer 4

their would be none numbers of solutions correct??

Answer 5

same line => infinitely many solutions (which we don't have)
parallel lines=> no solution (which we don't have)
Any other=we have one solution

Answer 6

Do we have parallel lines?

Answer 7

no we dont

Answer 8

Then the answer is not no solution

Answer 9

then the answer would be one solution correct?

Answer 10

right! :)

Answer 11

lol i like how u explain things .are u a teacher?

Answer 12

oh no you found me out lol

Answer 13

*hides*

Answer 14

jk

Answer 15

lol