3000=(x-(x*0.2))

Solution for 3000=(x-(x*0.2)) equation:

Simplifying
3000 = (x + -1(x * 0.2))

Reorder the terms for easier multiplication:
3000 = (x + -1(0.2x))

Remove parenthesis around (0.2x)
3000 = (x + -1 * 0.2x)

Multiply -1 * 0.2
3000 = (x + -0.2x)

Combine like terms: x + -0.2x = 0.8x
3000 = (0.8x)
3000 = (0.8x)

Solving
3000 = (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.
3000 + (-0.8x) = (0.8x) + (-0.8x)

Combine like terms: (0.8x) + (-0.8x) = 0.0
3000 + (-0.8x) = 0.0

Add '-3000' to each side of the equation.
3000 + -3000 + (-0.8x) = 0.0 + -3000

Combine like terms: 3000 + -3000 = 0
0 + (-0.8x) = 0.0 + -3000
(-0.8x) = 0.0 + -3000

Combine like terms: 0.0 + -3000 = -3000
(-0.8x) = -3000

Divide each side by '-0.8'.
x = 3750

Simplifying
x = 3750