5
 = 
485
x
97

Cross multiply:
5 * 97 = x * 485

Simplifying
5 * 97 = x * 485

Multiply 5 * 97
485 = x * 485

Reorder the terms for easier multiplication:
485 = 485x

Solving
485 = 485x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-485x' to each side of the equation.
485 + -485x = 485x + -485x

Combine like terms: 485x + -485x = 0
485 + -485x = 0

Add '-485' to each side of the equation.
485 + -485 + -485x = 0 + -485

Combine like terms: 485 + -485 = 0
0 + -485x = 0 + -485
-485x = 0 + -485

Combine like terms: 0 + -485 = -485
-485x = -485

Divide each side by '-485'.
x = 1

Simplifying
x = 1