X-y=5 4x+y=10 x=? y=?

The solution of the system of linear equations is and .

Step-by-step explanation:

Let and expressions of the system of linear equations. Since the number of variables and equations are the same, there is only one solution and we can solve it by algebraic means:

(1)

(2)

From (1):

By applying (1) in (2):

By (1):

The solution of the system of linear equations is and .

step-by-step explanation:

∆abc has the points a(1, 7), b(-2, 2), and c(4, 2) as its vertices. formed with the point d(1, 2) as its third vertex, then ∆abd is triangle.