400=x*2

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Solution for 400=x*2 equation:


Simplifying
400 = x * 2

Reorder the terms for easier multiplication:
400 = 2x

Solving
400 = 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
400 + -2x = 2x + -2x

Combine like terms: 2x + -2x = 0
400 + -2x = 0

Add '-400' to each side of the equation.
400 + -400 + -2x = 0 + -400

Combine like terms: 400 + -400 = 0
0 + -2x = 0 + -400
-2x = 0 + -400

Combine like terms: 0 + -400 = -400
-2x = -400

Divide each side by '-2'.
x = 200

Simplifying
x = 200

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