Question

Check whether (– 1, 5) is a solution of each system of equations.
x+y=4
x-y=6

Answer 1

I think x has to be equal to 5 and y be -1

Answer 2

as adding both the equations we have 2x=10
=>x=5 and so, y = 4-x=4-5=-1

Answer 3

b is not statisfing by values if x = -1 and y = 5 but it statisfing by x=5 and y = -1

Answer 4

Which means (-1,5) is not a solution of the system of equations..... :)

Answer 5

so my answer is not a solution

Answer 6

Yes......... !!!! :)

Answer 7

thanks