.3x+2-.1x=4.2

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Solution for .3x+2-.1x=4.2 equation:


Simplifying
0.3x + 2 + -0.1x = 4.2

Reorder the terms:
2 + 0.3x + -0.1x = 4.2

Combine like terms: 0.3x + -0.1x = 0.2x
2 + 0.2x = 4.2

Solving
2 + 0.2x = 4.2

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 0.2x = 4.2 + -2

Combine like terms: 2 + -2 = 0
0 + 0.2x = 4.2 + -2
0.2x = 4.2 + -2

Combine like terms: 4.2 + -2 = 2.2
0.2x = 2.2

Divide each side by '0.2'.
x = 11

Simplifying
x = 11

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