(x+3)=12

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Solution for (x+3)=12 equation: 


Simplifying
(x + 3) = 12

Reorder the terms:
(3 + x) = 12

Remove parenthesis around (3 + x)
3 + x = 12

Solving
3 + x = 12

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 + x = 12 + -3

Combine like terms: 3 + -3 = 0
0 + x = 12 + -3
x = 12 + -3

Combine like terms: 12 + -3 = 9
x = 9

Simplifying
x = 9

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