420-2x=40

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Solution for 420-2x=40 equation: 


Simplifying
420 + -2x = 40

Solving
420 + -2x = 40

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 = 40 + -420

Combine like terms: 420 + -420 = 0
0 + -2x = 40 + -420
-2x = 40 + -420

Combine like terms: 40 + -420 = -380
-2x = -380

Divide each side by '-2'.
x = 190

Simplifying
x = 190

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