640-2x=2018

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Solution for 640-2x=2018 equation: 


Simplifying
640 + -2x = 2018

Solving
640 + -2x = 2018

Solving for variable 'x'.

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

Add '-640' to each side of the equation.
640 + -640 + -2x = 2018 + -640

Combine like terms: 640 + -640 = 0
0 + -2x = 2018 + -640
-2x = 2018 + -640

Combine like terms: 2018 + -640 = 1378
-2x = 1378

Divide each side by '-2'.
x = -689

Simplifying
x = -689

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