6.7=3.4x-3.9x+5.7

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Solution for 6.7=3.4x-3.9x+5.7 equation: 


Simplifying
6.7 = 3.4x + -3.9x + 5.7

Reorder the terms:
6.7 = 5.7 + 3.4x + -3.9x

Combine like terms: 3.4x + -3.9x = -0.5x
6.7 = 5.7 + -0.5x

Solving
6.7 = 5.7 + -0.5x

Solving for variable 'x'.

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

Add '0.5x' to each side of the equation.
6.7 + 0.5x = 5.7 + -0.5x + 0.5x

Combine like terms: -0.5x + 0.5x = 0.0
6.7 + 0.5x = 5.7 + 0.0
6.7 + 0.5x = 5.7

Add '-6.7' to each side of the equation.
6.7 + -6.7 + 0.5x = 5.7 + -6.7

Combine like terms: 6.7 + -6.7 = 0.0
0.0 + 0.5x = 5.7 + -6.7
0.5x = 5.7 + -6.7

Combine like terms: 5.7 + -6.7 = -1
0.5x = -1

Divide each side by '0.5'.
x = -2

Simplifying
x = -2

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