420-2x=20

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Solution for 420-2x=20 equation: 


Simplifying
420 + -2x = 20

Solving
420 + -2x = 20

Solving for variable 'x'.

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

Add '-420' to each side of the equation.
420 + -420 + -2x = 20 + -420

Combine like terms: 420 + -420 = 0
0 + -2x = 20 + -420
-2x = 20 + -420

Combine like terms: 20 + -420 = -400
-2x = -400

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

Simplifying
x = 200

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