100+x=400+x

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Solution for 100+x=400+x equation: 


Simplifying
100 + x = 400 + x

Add '-1x' to each side of the equation.
100 + x + -1x = 400 + x + -1x

Combine like terms: x + -1x = 0
100 + 0 = 400 + x + -1x
100 = 400 + x + -1x

Combine like terms: x + -1x = 0
100 = 400 + 0
100 = 400

Solving
100 = 400

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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