x+(x-31.8)+(x+25.3)=199.9

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Solution for x+(x-31.8)+(x+25.3)=199.9 equation: 


Simplifying
x + (x + -31.8) + (x + 25.3) = 199.9

Reorder the terms:
x + (-31.8 + x) + (x + 25.3) = 199.9

Remove parenthesis around (-31.8 + x)
x + -31.8 + x + (x + 25.3) = 199.9

Reorder the terms:
x + -31.8 + x + (25.3 + x) = 199.9

Remove parenthesis around (25.3 + x)
x + -31.8 + x + 25.3 + x = 199.9

Reorder the terms:
-31.8 + 25.3 + x + x + x = 199.9

Combine like terms: -31.8 + 25.3 = -6.5
-6.5 + x + x + x = 199.9

Combine like terms: x + x = 2x
-6.5 + 2x + x = 199.9

Combine like terms: 2x + x = 3x
-6.5 + 3x = 199.9

Solving
-6.5 + 3x = 199.9

Solving for variable 'x'.

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

Add '6.5' to each side of the equation.
-6.5 + 6.5 + 3x = 199.9 + 6.5

Combine like terms: -6.5 + 6.5 = 0.0
0.0 + 3x = 199.9 + 6.5
3x = 199.9 + 6.5

Combine like terms: 199.9 + 6.5 = 206.4
3x = 206.4

Divide each side by '3'.
x = 68.8

Simplifying
x = 68.8

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