0.8(500-x)=4x

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Solution for 0.8(500-x)=4x equation:


Simplifying
0.8(500 + -1x) = 4x
(500 * 0.8 + -1x * 0.8) = 4x
(400 + -0.8x) = 4x

Solving
400 + -0.8x = 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
400 + -0.8x + -4x = 4x + -4x

Combine like terms: -0.8x + -4x = -4.8x
400 + -4.8x = 4x + -4x

Combine like terms: 4x + -4x = 0
400 + -4.8x = 0

Add '-400' to each side of the equation.
400 + -400 + -4.8x = 0 + -400

Combine like terms: 400 + -400 = 0
0 + -4.8x = 0 + -400
-4.8x = 0 + -400

Combine like terms: 0 + -400 = -400
-4.8x = -400

Divide each side by '-4.8'.
x = 83.33333333

Simplifying
x = 83.33333333

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