3x+18=-42

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Solution for 3x+18=-42 equation: 


Simplifying
3x + 18 = -42

Reorder the terms:
18 + 3x = -42

Solving
18 + 3x = -42

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 3x = -42 + -18

Combine like terms: 18 + -18 = 0
0 + 3x = -42 + -18
3x = -42 + -18

Combine like terms: -42 + -18 = -60
3x = -60

Divide each side by '3'.
x = -20

Simplifying
x = -20

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