If `|(4,1),(x,3)|` = 10 then `x` = ?

If 3x-4(64-x)=10, then x= ?

If 3^(1+x)+3^(1-x)=10 then the values of x are

If |{:(1,x,x^(2)),(x,x^(2),1),(x^(2),1,x):}| =3 then the value of |{:(x^(3)-1,0,x-x^(4)),(0,x-x^(4),x^(3)-1),(x-x^(4),x^(3)-1,0):}| is

3x-4y = 10.4x + 3y = 5

if 4 x 9 x 3 = 4 and 5 x 3 x 1 = 3 then 8 x 10 x 7 = ?

If 10^(x-1) + 10^(-x-1) = (1)/(3) , then x equals to