12+30-2x=6

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Solution for 12+30-2x=6 equation: 


Simplifying
12 + 30 + -2x = 6

Combine like terms: 12 + 30 = 42
42 + -2x = 6

Solving
42 + -2x = 6

Solving for variable 'x'.

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

Add '-42' to each side of the equation.
42 + -42 + -2x = 6 + -42

Combine like terms: 42 + -42 = 0
0 + -2x = 6 + -42
-2x = 6 + -42

Combine like terms: 6 + -42 = -36
-2x = -36

Divide each side by '-2'.
x = 18

Simplifying
x = 18

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