220=x-(.20*x)

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Solution for 220=x-(.20*x) equation:


Simplifying
220 = x + -1(0.20x)

Remove parenthesis around (0.20x)
220 = x + -1 * 0.20x

Multiply -1 * 0.20
220 = x + -0.2x

Combine like terms: x + -0.2x = 0.8x
220 = 0.8x

Solving
220 = 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.
220 + -0.8x = 0.8x + -0.8x

Combine like terms: 0.8x + -0.8x = 0.0
220 + -0.8x = 0.0

Add '-220' to each side of the equation.
220 + -220 + -0.8x = 0.0 + -220

Combine like terms: 220 + -220 = 0
0 + -0.8x = 0.0 + -220
-0.8x = 0.0 + -220

Combine like terms: 0.0 + -220 = -220
-0.8x = -220

Divide each side by '-0.8'.
x = 275

Simplifying
x = 275

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