.3x-1.2+.1x=.4

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Solution for .3x-1.2+.1x=.4 equation:


Simplifying
0.3x + -1.2 + 0.1x = 0.4

Reorder the terms:
-1.2 + 0.3x + 0.1x = 0.4

Combine like terms: 0.3x + 0.1x = 0.4x
-1.2 + 0.4x = 0.4

Solving
-1.2 + 0.4x = 0.4

Solving for variable 'x'.

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

Add '1.2' to each side of the equation.
-1.2 + 1.2 + 0.4x = 0.4 + 1.2

Combine like terms: -1.2 + 1.2 = 0.0
0.0 + 0.4x = 0.4 + 1.2
0.4x = 0.4 + 1.2

Combine like terms: 0.4 + 1.2 = 1.6
0.4x = 1.6

Divide each side by '0.4'.
x = 4

Simplifying
x = 4

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