-42+3x=12-3x

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Solution for -42+3x=12-3x equation:


Simplifying
-42 + 3x = 12 + -3x

Solving
-42 + 3x = 12 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
-42 + 3x + 3x = 12 + -3x + 3x

Combine like terms: 3x + 3x = 6x
-42 + 6x = 12 + -3x + 3x

Combine like terms: -3x + 3x = 0
-42 + 6x = 12 + 0
-42 + 6x = 12

Add '42' to each side of the equation.
-42 + 42 + 6x = 12 + 42

Combine like terms: -42 + 42 = 0
0 + 6x = 12 + 42
6x = 12 + 42

Combine like terms: 12 + 42 = 54
6x = 54

Divide each side by '6'.
x = 9

Simplifying
x = 9

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