# What is the solution to this system of linear equations? x + y = 4 x − y = 6 (4,6) (6,4) (5,-1) (-1,5)

QUESTION POSTED AT 01/06/2020 - 03:44 PM

QUESTION POSTED AT 01/06/2020 - 03:44 PM

X + y = 4

x - y = 6

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2x = 10

x = 10/2

x = 5

x + y = 4

5 + y = 4

y = 4 - 5

y = -1

solution is (5,-1)

x - y = 6

------------add

2x = 10

x = 10/2

x = 5

x + y = 4

5 + y = 4

y = 4 - 5

y = -1

solution is (5,-1)

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