2.19-7.8-8.31=x

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Solution for 2.19-7.8-8.31=x equation:


Simplifying
2.19 + -7.8 + -8.31 = x

Combine like terms: 2.19 + -7.8 = -5.61
-5.61 + -8.31 = x

Combine like terms: -5.61 + -8.31 = -13.92
-13.92 = x

Solving
-13.92 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-13.92 + -1x = x + -1x

Combine like terms: x + -1x = 0
-13.92 + -1x = 0

Add '13.92' to each side of the equation.
-13.92 + 13.92 + -1x = 0 + 13.92

Combine like terms: -13.92 + 13.92 = 0.00
0.00 + -1x = 0 + 13.92
-1x = 0 + 13.92

Combine like terms: 0 + 13.92 = 13.92
-1x = 13.92

Divide each side by '-1'.
x = -13.92

Simplifying
x = -13.92

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