6.4x+2.1=3.1x-1.2

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Solution for 6.4x+2.1=3.1x-1.2 equation: 


Simplifying
6.4x + 2.1 = 3.1x + -1.2

Reorder the terms:
2.1 + 6.4x = 3.1x + -1.2

Reorder the terms:
2.1 + 6.4x = -1.2 + 3.1x

Solving
2.1 + 6.4x = -1.2 + 3.1x

Solving for variable 'x'.

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

Add '-3.1x' to each side of the equation.
2.1 + 6.4x + -3.1x = -1.2 + 3.1x + -3.1x

Combine like terms: 6.4x + -3.1x = 3.3x
2.1 + 3.3x = -1.2 + 3.1x + -3.1x

Combine like terms: 3.1x + -3.1x = 0.0
2.1 + 3.3x = -1.2 + 0.0
2.1 + 3.3x = -1.2

Add '-2.1' to each side of the equation.
2.1 + -2.1 + 3.3x = -1.2 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + 3.3x = -1.2 + -2.1
3.3x = -1.2 + -2.1

Combine like terms: -1.2 + -2.1 = -3.3
3.3x = -3.3

Divide each side by '3.3'.
x = -1

Simplifying
x = -1

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