बिना आव्यूह के प्रतिलोम कि अवधारणा का प्रयोग किये आव्यूह `[(x,y),(z,u)]` निकाले ताकि `[(5,-7),(-2,3)][(x,y),(z,u)]=[(-16,-6),(7,2)]`

Without using the concept of inverse of a matrix, find the matrix [x y z u] such that [(5,-7),(-2 ,3)][(x ,y),( z, u)]=[(-16,-6 ),(7, 2)] .

If [(x+y,x-y),(7,6)] = [(10,2),(7,z)] then x, y, z are ………… .

5x-[4y-{7x-(3z-2y)+4z-3(x+3y-2z)}]

If ({:(x+y,x-y),(7,6):}) = ({:(10,2),(7,z):}) then x, y z are …….

Consider the lines (x-5)/(3)=(y-7)/(-16)=(z-3)/(7) and (x-9)/(3)=(y-13)/(8)=(z-15)/(-5) , then-

If ({:(3x -y, x + 3y),(2x - z, 2y +z):}) = ({:(7,9),(5,5):}), then x + y + z equals

4x -5y-11z=12,. x-3y+z=1 2x + 3y-7z = 2

If x,y,z in R & Delta =|(x,x+y,x+y+z),(2x,5x+2y,7x+5y+2z),(3x,7x+3y,9x+7y+3z)|=-16 then the value of x is