The reciprocal of (5/7)³   is _________

The reciprocal of (-5/4)³⁸ is _________

The two side of an equilateral triangle one given below find x.
x+2/2 cm and (x-6/3)cm

Equal sides of an isosceles triangle are (3x + 2) cm and (9x-5/2) cm find x = ?

Solve: (x - 2) + 5 = (x + 1)(x - 1) + x

A father is thrice as old as his son 5 years ago the age of the father was 4 times of his son's age at that time. Find their present ages.

0.5x + x/3 = 0.25x + 7 find x?

0.6x + x/6 = 0.5x + 5 find x

The reciprocal of (-2/7)² is __________

Find the value of x from the equation

(x -4)/3 -(5x - 2)/4 = 2