1.9x+0.3(7-x)=2.1-0.2x

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Solution for 1.9x+0.3(7-x)=2.1-0.2x equation: 


Simplifying
1.9x + 0.3(7 + -1x) = 2.1 + -0.2x
1.9x + (7 * 0.3 + -1x * 0.3) = 2.1 + -0.2x
1.9x + (2.1 + -0.3x) = 2.1 + -0.2x

Reorder the terms:
2.1 + 1.9x + -0.3x = 2.1 + -0.2x

Combine like terms: 1.9x + -0.3x = 1.6x
2.1 + 1.6x = 2.1 + -0.2x

Add '-2.1' to each side of the equation.
2.1 + -2.1 + 1.6x = 2.1 + -2.1 + -0.2x

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + 1.6x = 2.1 + -2.1 + -0.2x
1.6x = 2.1 + -2.1 + -0.2x

Combine like terms: 2.1 + -2.1 = 0.0
1.6x = 0.0 + -0.2x
1.6x = -0.2x

Solving
1.6x = -0.2x

Solving for variable 'x'.

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

Add '0.2x' to each side of the equation.
1.6x + 0.2x = -0.2x + 0.2x

Combine like terms: 1.6x + 0.2x = 1.8x
1.8x = -0.2x + 0.2x

Combine like terms: -0.2x + 0.2x = 0.0
1.8x = 0.0

Divide each side by '1.8'.
x = 0

Simplifying
x = 0

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