3.96=x-x(.2)

Solution for 3.96=x-x(.2) equation:

Simplifying
3.96 = x + -1x(0.2)

Reorder the terms for easier multiplication:
3.96 = x + -1 * 0.2x

Multiply -1 * 0.2
3.96 = x + -0.2x

Combine like terms: x + -0.2x = 0.8x
3.96 = 0.8x

Solving
3.96 = 0.8x

Solving for variable 'x'.

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

Add '-0.8x' to each side of the equation.
3.96 + -0.8x = 0.8x + -0.8x

Combine like terms: 0.8x + -0.8x = 0.0
3.96 + -0.8x = 0.0

Add '-3.96' to each side of the equation.
3.96 + -3.96 + -0.8x = 0.0 + -3.96

Combine like terms: 3.96 + -3.96 = 0.00
0.00 + -0.8x = 0.0 + -3.96
-0.8x = 0.0 + -3.96

Combine like terms: 0.0 + -3.96 = -3.96
-0.8x = -3.96

Divide each side by '-0.8'.
x = 4.95

Simplifying
x = 4.95