Q. If `2[[x,9],[y,6]]+3[[1,-1],[0,2]]=[[9,15],[12,18]],` then the values of `(x+y)` is (A) `3` (B) `9` (C) `-1` (D) `-2`

Find the values o x and y if: (3x-1,2y-7)=(9,-9)

If y=3^(x-1)+3^(-x-1) , then the least value of y is (a) 2 (b) 6 (c) 2//3 (d) 3//2

If 2((1,3),(0,x))+((y,0),(1,2))=((5,6),(1,8)) , then find the value of x+y.

if (log)_y x+(log)_x y=2,x^2+y=12 , the value of x y is 9 (b) 12 (c) 15 (d) 30

If x+y=k is normal to y^2=12 x , then k is (a)3 (b) 9 (c) -9 (d) -3

If 3/4 y =6-1/3c, then what is the value of 2x + 9/2y ?

Suppose that beta is a real number such that 3^(2x +3) = (3^(x))/(2^(x)) , then the value of 2^(-(1+log_(2)3)beta) is equal to (A) 6 (B) 9 (C) 18 (D) 27

If 3x+2y=12 and x y=6, find the value of 9x^2+4y^2

If the lines (x-1)/2=(y+1)/3=(z-1)/4 and (x-3)/1=(y-k)/2=z/1 intersect then the value of k is (A) 3/2 (B) 9/2 (C) -2/9 (D) -3/2