3(5x+1)+x(2+1)=0

Solution for 3(5x+1)+x(2+1)=0 equation:

Simplifying
3(5x + 1) + x(2 + 1) = 0

Reorder the terms:
3(1 + 5x) + x(2 + 1) = 0
(1 * 3 + 5x * 3) + x(2 + 1) = 0
(3 + 15x) + x(2 + 1) = 0

Combine like terms: 2 + 1 = 3
3 + 15x + x(3) = 0

Reorder the terms for easier multiplication:
3 + 15x + 3x = 0

Combine like terms: 15x + 3x = 18x
3 + 18x = 0

Solving
3 + 18x = 0

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 18x = 0 + -3

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

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

Divide each side by '18'.
x = -0.1666666667

Simplifying
x = -0.1666666667