2(x+3.15)+2x=31

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Solution for 2(x+3.15)+2x=31 equation: 


Simplifying
2(x + 3.15) + 2x = 31

Reorder the terms:
2(3.15 + x) + 2x = 31
(3.15 * 2 + x * 2) + 2x = 31
(6.3 + 2x) + 2x = 31

Combine like terms: 2x + 2x = 4x
6.3 + 4x = 31

Solving
6.3 + 4x = 31

Solving for variable 'x'.

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

Add '-6.3' to each side of the equation.
6.3 + -6.3 + 4x = 31 + -6.3

Combine like terms: 6.3 + -6.3 = 0.0
0.0 + 4x = 31 + -6.3
4x = 31 + -6.3

Combine like terms: 31 + -6.3 = 24.7
4x = 24.7

Divide each side by '4'.
x = 6.175

Simplifying
x = 6.175

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