Find the value of x
`7^(10)-:7^8=(1/7)^x`

Find the value of: -7-8-(-25)

If x^(2) +(1)/(x^(2)) = 7. find the values of , x - (1)/(x)

If x^(2) +(1)/(x^(2)) = 7. find the values of , x+(1)/(x)

If x^(2) + (1)/(x^(2))= 7 and x ne 0 , find the value of : 7x^(3) + 8x- (7)/(x^(3))- (8)/(x)

If x^2+1/(x^2)=7 , find the value of x^3+1/(x^3)

If 10y=7x-4 and 12x+18y=1 . Find the value of 4x+6y and 8y-x .

If sum_(i=1)^(7) i^(2)x_(i) = 1 and sum_(i=1)^(7)(i+1)^(2) x_(i) = 12 and sum_(i=1)^(7)(i+2)^(2)x_(i) = 123 then find the value of sum_(i=1)^(7)(i+3)^(2)x_(i)"____"

Find the value of 5 1/7-{3 3/10+(2 4/5-7/10)}

If x=(sqrt(3)+1)/2, find the value of 4x^3+2x^2-8x+7.

Find the value of 'x' and 'y' if : 2[(x,7),(9,y-5)]+[(6,-7),(4,5)]=[(10,7),(22,15)]