400=2X*20

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Solution for 400=2X*20 equation:


Simplifying
400 = 2X * 20

Reorder the terms for easier multiplication:
400 = 2 * 20X

Multiply 2 * 20
400 = 40X

Solving
400 = 40X

Solving for variable 'X'.

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

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

Combine like terms: 40X + -40X = 0
400 + -40X = 0

Add '-400' to each side of the equation.
400 + -400 + -40X = 0 + -400

Combine like terms: 400 + -400 = 0
0 + -40X = 0 + -400
-40X = 0 + -400

Combine like terms: 0 + -400 = -400
-40X = -400

Divide each side by '-40'.
X = 10

Simplifying
X = 10

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