12.4+x=78.3

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Solution for 12.4+x=78.3 equation: 


Simplifying
12.4 + x = 78.3

Solving
12.4 + x = 78.3

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-12.4' to each side of the equation.
12.4 + -12.4 + x = 78.3 + -12.4

Combine like terms: 12.4 + -12.4 = 0.0
0.0 + x = 78.3 + -12.4
x = 78.3 + -12.4

Combine like terms: 78.3 + -12.4 = 65.9
x = 65.9

Simplifying
x = 65.9

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