8.4+3.9-x=9.5

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Solution for 8.4+3.9-x=9.5 equation:


Simplifying
8.4 + 3.9 + -1x = 9.5

Combine like terms: 8.4 + 3.9 = 12.3
12.3 + -1x = 9.5

Solving
12.3 + -1x = 9.5

Solving for variable 'x'.

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

Add '-12.3' to each side of the equation.
12.3 + -12.3 + -1x = 9.5 + -12.3

Combine like terms: 12.3 + -12.3 = 0.0
0.0 + -1x = 9.5 + -12.3
-1x = 9.5 + -12.3

Combine like terms: 9.5 + -12.3 = -2.8
-1x = -2.8

Divide each side by '-1'.
x = 2.8

Simplifying
x = 2.8

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