3(-9-x)=42

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Solution for 3(-9-x)=42 equation: 


Simplifying
3(-9 + -1x) = 42
(-9 * 3 + -1x * 3) = 42
(-27 + -3x) = 42

Solving
-27 + -3x = 42

Solving for variable 'x'.

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

Add '27' to each side of the equation.
-27 + 27 + -3x = 42 + 27

Combine like terms: -27 + 27 = 0
0 + -3x = 42 + 27
-3x = 42 + 27

Combine like terms: 42 + 27 = 69
-3x = 69

Divide each side by '-3'.
x = -23

Simplifying
x = -23

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