200-(-400)=

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Solution for 200-(-400)= equation: 


Simplifying
200 + -1(-400) = 0

Multiply -1 * -400
200 + 400 = 0

Combine like terms: 200 + 400 = 600
600 = 0

Solving
600 = 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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