0.8x-3.9=0.2x-3

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Solution for 0.8x-3.9=0.2x-3 equation: 


Simplifying
0.8x + -3.9 = 0.2x + -3

Reorder the terms:
-3.9 + 0.8x = 0.2x + -3

Reorder the terms:
-3.9 + 0.8x = -3 + 0.2x

Solving
-3.9 + 0.8x = -3 + 0.2x

Solving for variable 'x'.

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

Add '-0.2x' to each side of the equation.
-3.9 + 0.8x + -0.2x = -3 + 0.2x + -0.2x

Combine like terms: 0.8x + -0.2x = 0.6x
-3.9 + 0.6x = -3 + 0.2x + -0.2x

Combine like terms: 0.2x + -0.2x = 0.0
-3.9 + 0.6x = -3 + 0.0
-3.9 + 0.6x = -3

Add '3.9' to each side of the equation.
-3.9 + 3.9 + 0.6x = -3 + 3.9

Combine like terms: -3.9 + 3.9 = 0.0
0.0 + 0.6x = -3 + 3.9
0.6x = -3 + 3.9

Combine like terms: -3 + 3.9 = 0.9
0.6x = 0.9

Divide each side by '0.6'.
x = 1.5

Simplifying
x = 1.5

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