8. 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

If X+Y=[[5,2],[0,9]] and X-Y=[[3,6],[0,-1]] then find the value of X and Y

Find x and y , if 2[[1,3],[0,x]]+[[y,0],[1,2]]=[[5,6],[1,8]]

If x+y=[[5,2],[0,9]] and x-y=[[3,6],[0,-1]] , then find x&y .

If (x-1)/(x)=3, then the value of 1+(1)/(x^(2)) is (a) 9(b) 10(c)11 (d) None of these

If x-y=1 and x^(2)+y^(2)=41, then the value of x+y will be (a)5 or 4(b)-5 or -4 (c) +-9(d)+-1

Find the value of x and y I. 18x^(2)-9x+1=0 II. 12y^(2)-y-1=0

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

Let ((x)/(2)-1,(y)/(9)+1) = (2,1) ; then the values of x and y respectively are a) 3, 5 b) 6,0 c) 5, 3 d) 0, 6

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) 2/9 (B) 9/2 (C) 0 (D) -1

Find x+y and x-y if x=[[5,2],[0,9]] and y=[[3,6],[0,-1]] .