7.9x-12.4-2.3x=15.6

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Solution for 7.9x-12.4-2.3x=15.6 equation: 


Simplifying
7.9x + -12.4 + -2.3x = 15.6

Reorder the terms:
-12.4 + 7.9x + -2.3x = 15.6

Combine like terms: 7.9x + -2.3x = 5.6x
-12.4 + 5.6x = 15.6

Solving
-12.4 + 5.6x = 15.6

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 + 5.6x = 15.6 + 12.4

Combine like terms: -12.4 + 12.4 = 0.0
0.0 + 5.6x = 15.6 + 12.4
5.6x = 15.6 + 12.4

Combine like terms: 15.6 + 12.4 = 28
5.6x = 28

Divide each side by '5.6'.
x = 5

Simplifying
x = 5

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