Answer :

Given: =


Multiplying we get,



From above we can see that,


5 x – 7 z = – 16 …(1)


–2x + 3 z = 7 ….(2)


5 y – 7 u = – 6 …..(3)


–2y + 3 u = 2 ……(4)


Now we have to solve these equations to find values of x, y, z and u


Multiplying eq (1) by 2 and eq (2) by 5 and adding the equations we get,


10 x – 14 z + 10 x + 15 z = –32 + 35


Z = 3


Putting this value in eq(1) we get,


5 x – 21 = – 16


5 x = 5


X = 1


Now, multiplying eq(3) by 2 and eq(4) by 5 and adding we get,


10 y – 14 u + 10 y + 15 u = –12 + 10


u = –2


Putting value of u in equation (3) we get,


5 y + 14 = = – 6


5 y = – 20


Y = –4


Therefore now we have,



Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Using matrices, sMathematics - Board Papers

If possible, usinMathematics - Exemplar

If possible, usinMathematics - Exemplar

Using matrices, sMathematics - Board Papers

Prove that <span Mathematics - Board Papers

Find the value ofMathematics - Board Papers

If A is a <span lMathematics - Board Papers