1.5+0.1x=0.4x-3.9

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Solution for 1.5+0.1x=0.4x-3.9 equation: 


Simplifying
1.5 + 0.1x = 0.4x + -3.9

Reorder the terms:
1.5 + 0.1x = -3.9 + 0.4x

Solving
1.5 + 0.1x = -3.9 + 0.4x

Solving for variable 'x'.

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

Add '-0.4x' to each side of the equation.
1.5 + 0.1x + -0.4x = -3.9 + 0.4x + -0.4x

Combine like terms: 0.1x + -0.4x = -0.3x
1.5 + -0.3x = -3.9 + 0.4x + -0.4x

Combine like terms: 0.4x + -0.4x = 0.0
1.5 + -0.3x = -3.9 + 0.0
1.5 + -0.3x = -3.9

Add '-1.5' to each side of the equation.
1.5 + -1.5 + -0.3x = -3.9 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
0.0 + -0.3x = -3.9 + -1.5
-0.3x = -3.9 + -1.5

Combine like terms: -3.9 + -1.5 = -5.4
-0.3x = -5.4

Divide each side by '-0.3'.
x = 18

Simplifying
x = 18

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