.4x+4.2=1.3-1.3x

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Solution for .4x+4.2=1.3-1.3x equation: 


Simplifying
0.4x + 4.2 = 1.3 + -1.3x

Reorder the terms:
4.2 + 0.4x = 1.3 + -1.3x

Solving
4.2 + 0.4x = 1.3 + -1.3x

Solving for variable 'x'.

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

Add '1.3x' to each side of the equation.
4.2 + 0.4x + 1.3x = 1.3 + -1.3x + 1.3x

Combine like terms: 0.4x + 1.3x = 1.7x
4.2 + 1.7x = 1.3 + -1.3x + 1.3x

Combine like terms: -1.3x + 1.3x = 0.0
4.2 + 1.7x = 1.3 + 0.0
4.2 + 1.7x = 1.3

Add '-4.2' to each side of the equation.
4.2 + -4.2 + 1.7x = 1.3 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + 1.7x = 1.3 + -4.2
1.7x = 1.3 + -4.2

Combine like terms: 1.3 + -4.2 = -2.9
1.7x = -2.9

Divide each side by '1.7'.
x = -1.705882353

Simplifying
x = -1.705882353

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