9-2.78=4.2

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Solution for 9-2.78=4.2 equation: 


Simplifying
9 + -2.78 = 4.2

Combine like terms: 9 + -2.78 = 6.22
6.22 = 4.2

Solving
6.22 = 4.2

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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