0.4=0.40

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Solution for 0.4=0.40 equation: 


Simplifying
0.4 = 0.40

Add '-0.4' to each side of the equation.
0.4 + -0.4 = 0.40 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 = 0.40 + -0.4

Combine like terms: 0.40 + -0.4 = 0.00
0.0 = 0.00

Solving
0.0 = 0.00

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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