4+x=12

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Solution for 4+x=12 equation: 


Simplifying
4 + x = 12

Solving
4 + x = 12

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + x = 12 + -4

Combine like terms: 4 + -4 = 0
0 + x = 12 + -4
x = 12 + -4

Combine like terms: 12 + -4 = 8
x = 8

Simplifying
x = 8

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