Question

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

Answer 1

The solution to the system of linear equation x + y = 4 and x - y = 6 is (5, -1).

How to find the variable in a system of equation?

x + y = 4

x - y = 6

Therefore, let's add the equations.

2x = 10

divide both sides by 2

x = 10 / 2

x = 5

Let's find the value of y

Therefore,

x + y = 4

5 + y = 4

y = 4 - 5

y = - 1

Therefore, the solution of the system of equation is (5, -1)

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