0.3x+4.2=0.1x+4

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Solution for 0.3x+4.2=0.1x+4 equation:


Simplifying
0.3x + 4.2 = 0.1x + 4

Reorder the terms:
4.2 + 0.3x = 0.1x + 4

Reorder the terms:
4.2 + 0.3x = 4 + 0.1x

Solving
4.2 + 0.3x = 4 + 0.1x

Solving for variable 'x'.

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

Add '-0.1x' to each side of the equation.
4.2 + 0.3x + -0.1x = 4 + 0.1x + -0.1x

Combine like terms: 0.3x + -0.1x = 0.2x
4.2 + 0.2x = 4 + 0.1x + -0.1x

Combine like terms: 0.1x + -0.1x = 0.0
4.2 + 0.2x = 4 + 0.0
4.2 + 0.2x = 4

Add '-4.2' to each side of the equation.
4.2 + -4.2 + 0.2x = 4 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + 0.2x = 4 + -4.2
0.2x = 4 + -4.2

Combine like terms: 4 + -4.2 = -0.2
0.2x = -0.2

Divide each side by '0.2'.
x = -1

Simplifying
x = -1

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