`5/2x+3=21/2`

If A=[(0,1,2),(1,2,3),(3,1,1)] and A^(-1)=[(1//2,-1//2,1//2),(-4,3,x),(5//2,-3//2,1//2)] then

If 3x + 5y = 21 and 2x +3y = 13 , then find the values of x and y .

If A=[(0,1,2),(1,2,3),(3,a,1)] and A^(-10)=[(1//2,1//2,1//2),(-4,3,c),(5//2,-3//2,1//2)] , then the values of a and c are equal to

Divide 5x^(3)-13x^(2)+21x-14 by (3-2x+x^(2)) and verify the division algorithm.

If 2X+3Y=[[-2,21,-5]] and 3X+2Y=[[2,4,0]] then find X and Y

Solve the following equations: 2x+5=21

x = –12 is the solution of the linear equation 5x –3(2x + 1) = 21+x

Solve 2|x - 5|+ 5 = 21