0.3x-4.2=0.9x

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Solution for 0.3x-4.2=0.9x equation:


Simplifying
0.3x + -4.2 = 0.9x

Reorder the terms:
-4.2 + 0.3x = 0.9x

Solving
-4.2 + 0.3x = 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.
-4.2 + 0.3x + -0.9x = 0.9x + -0.9x

Combine like terms: 0.3x + -0.9x = -0.6x
-4.2 + -0.6x = 0.9x + -0.9x

Combine like terms: 0.9x + -0.9x = 0.0
-4.2 + -0.6x = 0.0

Add '4.2' to each side of the equation.
-4.2 + 4.2 + -0.6x = 0.0 + 4.2

Combine like terms: -4.2 + 4.2 = 0.0
0.0 + -0.6x = 0.0 + 4.2
-0.6x = 0.0 + 4.2

Combine like terms: 0.0 + 4.2 = 4.2
-0.6x = 4.2

Divide each side by '-0.6'.
x = -7

Simplifying
x = -7

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