If `(1)/(6!)+(1)/(7!)=(x)/(8!)` then the value of `x` is

If 1/(6!)+1/(7!)=x/(8!), find x

If 49x^(2)-b=(7x+(1)/(2))(7x-(1)/(2)), then the value of b is

If (7)/(12)x-(1)/(3)x=(1)/(2)+(3)/(8) , what is the value of x?

Solve : (2x)/(3)-(x-1)/(6)+(7x-1)/(4)=2(1)/(6) . Hence, find the value of 'a', if (1)/(a)+5x=8 .

If |(2x,5),(8,x)|=|(6,-2),(7,3)| then the value of x is

If f (x)=((x+1)^(7)sqrt(1+x ^(2)))/((x^(2) -x+1)^(6)), then the value of f'(0) is equal to:

If x+1/x=3 , then the value of x^6+1/x^6 is.

If the fourth term in the binomial expansin of ((2)/(x) + x^(log_(8) x))^(6) (x gt 0) is 20 xx 8^(7) , then the value of x is

If x^(-(1)/(2))=(1)/(8) , what is the value of x^((2)/(3)) ?

If the mean of x_(1),x_(2) is 7.5 and the mean of x_(1),x_(2),x_(3) is 8, then the value of x_(3) is