0.3x+0.9=0.9x-3.9

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Solution for 0.3x+0.9=0.9x-3.9 equation: 


Simplifying
0.3x + 0.9 = 0.9x + -3.9

Reorder the terms:
0.9 + 0.3x = 0.9x + -3.9

Reorder the terms:
0.9 + 0.3x = -3.9 + 0.9x

Solving
0.9 + 0.3x = -3.9 + 0.9x

Solving for variable 'x'.

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

Add '-0.9x' to each side of the equation.
0.9 + 0.3x + -0.9x = -3.9 + 0.9x + -0.9x

Combine like terms: 0.3x + -0.9x = -0.6x
0.9 + -0.6x = -3.9 + 0.9x + -0.9x

Combine like terms: 0.9x + -0.9x = 0.0
0.9 + -0.6x = -3.9 + 0.0
0.9 + -0.6x = -3.9

Add '-0.9' to each side of the equation.
0.9 + -0.9 + -0.6x = -3.9 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + -0.6x = -3.9 + -0.9
-0.6x = -3.9 + -0.9

Combine like terms: -3.9 + -0.9 = -4.8
-0.6x = -4.8

Divide each side by '-0.6'.
x = 8

Simplifying
x = 8

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