Find `x+y+z+w`

If [(x,3x-y),(2x+z,3y-omega)]=[(3 ,2 ),(4 ,7)] , find x , y , z , omega .

If [(x-y, z),(2x-y, w)] = [(-1,4),(0,5)] , find x , y , z and w.

(a) Find x+y+z(b) Find x+y+x+w

if x , y , z , a n d w be the digits of a number beginning from the left , the number is x y z w (b) w z y x (c) x + 10 y + 100 z + 1000 w (d) 10^3x+10^2y+10 z+w

If [(x-y ,z),(2x-y,omega)]=[(-1 ,4),( 0 ,5)] , find x ,\ y ,\ z ,\ omega .

If [(x,3x-y),(2x+z,3y-omega)]=[(3 ,2 ),(4 ,7)] , find x ,\ y ,\ z ,\ omega .

If [{:(x-y,2x+z),(2x-y,3z+w):}]=[{:(-1,5),(0,13):}] then find x,y,z and w .

If [{:(x,6),(-1,2w):}]+[{:(" "4,x+y),(z+w," "3):}]=3[{:(x,y),(z,w):}] , find the values of x, y, z, w.

Find the number of solutions of the equation x + y + z = 6, where x, y, z, in W.

The number of integers x,y,z, w such that x +y+z+w=20 and x , y, w,z ge -1 is