3.1x-7.86=6.4

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Solution for 3.1x-7.86=6.4 equation: 


Simplifying
3.1x + -7.86 = 6.4

Reorder the terms:
-7.86 + 3.1x = 6.4

Solving
-7.86 + 3.1x = 6.4

Solving for variable 'x'.

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

Add '7.86' to each side of the equation.
-7.86 + 7.86 + 3.1x = 6.4 + 7.86

Combine like terms: -7.86 + 7.86 = 0.00
0.00 + 3.1x = 6.4 + 7.86
3.1x = 6.4 + 7.86

Combine like terms: 6.4 + 7.86 = 14.26
3.1x = 14.26

Divide each side by '3.1'.
x = 4.6

Simplifying
x = 4.6

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