x+4-12=13

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Solution for x+4-12=13 equation: 


Simplifying
x + 4 + -12 = 13

Reorder the terms:
4 + -12 + x = 13

Combine like terms: 4 + -12 = -8
-8 + x = 13

Solving
-8 + x = 13

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + x = 13 + 8

Combine like terms: -8 + 8 = 0
0 + x = 13 + 8
x = 13 + 8

Combine like terms: 13 + 8 = 21
x = 21

Simplifying
x = 21

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