12+x+8=18

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Solution for 12+x+8=18 equation: 


Simplifying
12 + x + 8 = 18

Reorder the terms:
12 + 8 + x = 18

Combine like terms: 12 + 8 = 20
20 + x = 18

Solving
20 + x = 18

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + x = 18 + -20

Combine like terms: 20 + -20 = 0
0 + x = 18 + -20
x = 18 + -20

Combine like terms: 18 + -20 = -2
x = -2

Simplifying
x = -2

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