Question

Solve the following system.
x − y = 10
x + y = 6

a. (−2, 8)
b. (−8, 2)
c. (8, −2)
d. (8, 2)

Answer 1

well we can solve it by using different ways!
first of all:
we have x - y = 10 so x = y + 10

Answer 2

ok?

Answer 3

ok

Answer 4

just add them, the y's will cancel out and you can solve for x

Answer 5

then plug in the x value and solve for y

Answer 6

exactly :)

Answer 7

we have x = y +10 so we can put y + 10 + y = 6 :)

Answer 8

and @texaschic101 told the other way

Answer 9

true..you can solve by substitution as well

Answer 10

ok but I still am confused what is the answer

Answer 11

try out the subtracting method and see what you get

Answer 12

ok I got d