Question

Solving by addition
x+y=4
x-y=6

Answer 1

you got to be kidding

Answer 2

what a jerk!

Answer 3

x+y=4
x-y=6
=====
2x = 10

x = 10/2
x = 5

Now x = 5 in any equation u like to solve for y.

Answer 4

Oh wow. Such strong emotions

Answer 5

Not really that was just rude. it says y=-1 wheres that come from?

Answer 6

once you have x=5 from adding the two equations together, you have to get the value for the y-coordnate by back substituting into any equation that has a y in it; i will show you using the first equation from the original system:

x+y=4
5+y=4 (sub in the know value for x)
y=-1 (subtract 5 from both sides of the equation)

the answer may be written as x=5, y=-1, or as an ordered pair (5,-1) depending on the custom in your class.

Answer 7

Thank you that was very helpful!

Answer 8

ur welcome