6.42-10*.392=2.5

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Solution for 6.42-10*.392=2.5 equation: 


Simplifying
6.42 + -10 * 0.392 = 2.5

Multiply -10 * 0.392
6.42 + -3.92 = 2.5

Combine like terms: 6.42 + -3.92 = 2.5
2.5 = 2.5

Add '-2.5' to each side of the equation.
2.5 + -2.5 = 2.5 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 = 2.5 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 = 0.0

Solving
0.0 = 0.0

Couldn't find a variable to solve for.

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

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