6.4+7.8+x=8

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Solution for 6.4+7.8+x=8 equation: 


Simplifying
6.4 + 7.8 + x = 8

Combine like terms: 6.4 + 7.8 = 14.2
14.2 + x = 8

Solving
14.2 + x = 8

Solving for variable 'x'.

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

Add '-14.2' to each side of the equation.
14.2 + -14.2 + x = 8 + -14.2

Combine like terms: 14.2 + -14.2 = 0.0
0.0 + x = 8 + -14.2
x = 8 + -14.2

Combine like terms: 8 + -14.2 = -6.2
x = -6.2

Simplifying
x = -6.2

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