3x-42-12x=18

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Solution for 3x-42-12x=18 equation:


Simplifying
3x + -42 + -12x = 18

Reorder the terms:
-42 + 3x + -12x = 18

Combine like terms: 3x + -12x = -9x
-42 + -9x = 18

Solving
-42 + -9x = 18

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 = 18 + 42

Combine like terms: -42 + 42 = 0
0 + -9x = 18 + 42
-9x = 18 + 42

Combine like terms: 18 + 42 = 60
-9x = 60

Divide each side by '-9'.
x = -6.666666667

Simplifying
x = -6.666666667

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