(30-40)*2=

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Solution for (30-40)*2= equation: 


Simplifying
(30 + -40) * 2 = 0

Combine like terms: 30 + -40 = -10
(-10) * 2 = 0

Multiply -10 * 2
-20 = 0

Solving
-20 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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