20-0.4=3.2

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Solution for 20-0.4=3.2 equation: 


Simplifying
20 + -0.4 = 3.2

Combine like terms: 20 + -0.4 = 19.6
19.6 = 3.2

Solving
19.6 = 3.2

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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