Use the echelon method to solve the following system of two equations in two unknowns. check your answer. x+y=17 amd 9x-y=73

  y = 8

x = 9

Step-by-step explanation:

given equation,

x + y = 17     ........(1)

9 x - y = 73...........(2)

writing in matrix form

A X = B

using augamented matrix A|B

using row transformation

R₂ = R₂ - 9 R₁

now,

now

-10 y = -80

    y = 8

and

x + y = 17

x = 17 -8

x =9

the factors of 24 are 1, 2, 3, 4, 6, 8, 12 and 24. hope this ! mark brainliest! you v much! : )

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,