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 = 15x
42 + 15x = -18

Solving
42 + 15x = -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 + 15x = -18 + -42

Combine like terms: 42 + -42 = 0
0 + 15x = -18 + -42
15x = -18 + -42

Combine like terms: -18 + -42 = -60
15x = -60

Divide each side by '15'.
x = -4

Simplifying
x = -4

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