3(10+3x)+12=

Solution for 3(10+3x)+12= equation:

Simplifying
3(10 + 3x) + 12 = 0
(10 * 3 + 3x * 3) + 12 = 0
(30 + 9x) + 12 = 0

Reorder the terms:
30 + 12 + 9x = 0

Combine like terms: 30 + 12 = 42
42 + 9x = 0

Solving
42 + 9x = 0

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 = 0 + -42

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

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

Divide each side by '9'.
x = -4.666666667

Simplifying
x = -4.666666667