0.4x-2.5=3.9+1.3x

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Solution for 0.4x-2.5=3.9+1.3x equation: 


Simplifying
0.4x + -2.5 = 3.9 + 1.3x

Reorder the terms:
-2.5 + 0.4x = 3.9 + 1.3x

Solving
-2.5 + 0.4x = 3.9 + 1.3x

Solving for variable 'x'.

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

Add '-1.3x' to each side of the equation.
-2.5 + 0.4x + -1.3x = 3.9 + 1.3x + -1.3x

Combine like terms: 0.4x + -1.3x = -0.9x
-2.5 + -0.9x = 3.9 + 1.3x + -1.3x

Combine like terms: 1.3x + -1.3x = 0.0
-2.5 + -0.9x = 3.9 + 0.0
-2.5 + -0.9x = 3.9

Add '2.5' to each side of the equation.
-2.5 + 2.5 + -0.9x = 3.9 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + -0.9x = 3.9 + 2.5
-0.9x = 3.9 + 2.5

Combine like terms: 3.9 + 2.5 = 6.4
-0.9x = 6.4

Divide each side by '-0.9'.
x = -7.111111111

Simplifying
x = -7.111111111

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