3x+42+6x=12

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Solution for 3x+42+6x=12 equation:


Simplifying
3x + 42 + 6x = 12

Reorder the terms:
42 + 3x + 6x = 12

Combine like terms: 3x + 6x = 9x
42 + 9x = 12

Solving
42 + 9x = 12

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 + 9x = 12 + -42

Combine like terms: 42 + -42 = 0
0 + 9x = 12 + -42
9x = 12 + -42

Combine like terms: 12 + -42 = -30
9x = -30

Divide each side by '9'.
x = -3.333333333

Simplifying
x = -3.333333333

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