4x-1.2=x-3.9

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Solution for 4x-1.2=x-3.9 equation:


Simplifying
4x + -1.2 = x + -3.9

Reorder the terms:
-1.2 + 4x = x + -3.9

Reorder the terms:
-1.2 + 4x = -3.9 + x

Solving
-1.2 + 4x = -3.9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-1.2 + 4x + -1x = -3.9 + x + -1x

Combine like terms: 4x + -1x = 3x
-1.2 + 3x = -3.9 + x + -1x

Combine like terms: x + -1x = 0
-1.2 + 3x = -3.9 + 0
-1.2 + 3x = -3.9

Add '1.2' to each side of the equation.
-1.2 + 1.2 + 3x = -3.9 + 1.2

Combine like terms: -1.2 + 1.2 = 0.0
0.0 + 3x = -3.9 + 1.2
3x = -3.9 + 1.2

Combine like terms: -3.9 + 1.2 = -2.7
3x = -2.7

Divide each side by '3'.
x = -0.9

Simplifying
x = -0.9

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