x+(x+3)=31

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Solution for x+(x+3)=31 equation:


Simplifying
x + (x + 3) = 31

Reorder the terms:
x + (3 + x) = 31

Remove parenthesis around (3 + x)
x + 3 + x = 31

Reorder the terms:
3 + x + x = 31

Combine like terms: x + x = 2x
3 + 2x = 31

Solving
3 + 2x = 31

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 2x = 31 + -3

Combine like terms: 3 + -3 = 0
0 + 2x = 31 + -3
2x = 31 + -3

Combine like terms: 31 + -3 = 28
2x = 28

Divide each side by '2'.
x = 14

Simplifying
x = 14

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