20x+400(1-x)=40

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Solution for 20x+400(1-x)=40 equation:


Simplifying
20x + 400(1 + -1x) = 40
20x + (1 * 400 + -1x * 400) = 40
20x + (400 + -400x) = 40

Reorder the terms:
400 + 20x + -400x = 40

Combine like terms: 20x + -400x = -380x
400 + -380x = 40

Solving
400 + -380x = 40

Solving for variable 'x'.

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

Add '-400' to each side of the equation.
400 + -400 + -380x = 40 + -400

Combine like terms: 400 + -400 = 0
0 + -380x = 40 + -400
-380x = 40 + -400

Combine like terms: 40 + -400 = -360
-380x = -360

Divide each side by '-380'.
x = 0.9473684211

Simplifying
x = 0.9473684211

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