The solutions of equations x-y=2 and x+y=4 are...
A) (4,2) B) (1,3) C) (3,1) D)(1,2)
Answers
Answer:
The solutions of equations x-y=2 and x+y=4 is
C) (3,1)
Step-by-step explanation:
please mark it brainliest and folow me
▪ let x = 4
y = 2
x - y = 2
4 - 2 = 2
__________________________________
x + y = 4
4 + 2 = 6
_________________________________
Hence x and y cannot be (4,2) respectively
_________________________________
▪ let x = 1
y = 3
_________________________________
x - y = 2
1 - 3 = -2
_________________________________
x + y = 4
1 + 3 = 4
_________________________________
Hence x and y cannot be (1,3) respectively
_________________________________
▪let x = 3
y = 1
_________________________________
x - y = 2
3 - 1 = 2
_________________________________
x + y = 4
3 + 1 = 4
__________________________________
x and y is (4,1) respectively
__________________________________
The right option is C ( 4, 1 )