8x+20.4=4.2x

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Solution for 8x+20.4=4.2x equation:


Simplifying
8x + 20.4 = 4.2x

Reorder the terms:
20.4 + 8x = 4.2x

Solving
20.4 + 8x = 4.2x

Solving for variable 'x'.

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

Add '-4.2x' to each side of the equation.
20.4 + 8x + -4.2x = 4.2x + -4.2x

Combine like terms: 8x + -4.2x = 3.8x
20.4 + 3.8x = 4.2x + -4.2x

Combine like terms: 4.2x + -4.2x = 0.0
20.4 + 3.8x = 0.0

Add '-20.4' to each side of the equation.
20.4 + -20.4 + 3.8x = 0.0 + -20.4

Combine like terms: 20.4 + -20.4 = 0.0
0.0 + 3.8x = 0.0 + -20.4
3.8x = 0.0 + -20.4

Combine like terms: 0.0 + -20.4 = -20.4
3.8x = -20.4

Divide each side by '3.8'.
x = -5.368421053

Simplifying
x = -5.368421053

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