6+2(x+9)=20

Solution for 6+2(x+9)=20 equation:

Simplifying
6 + 2(x + 9) = 20

Reorder the terms:
6 + 2(9 + x) = 20
6 + (9 * 2 + x * 2) = 20
6 + (18 + 2x) = 20

Combine like terms: 6 + 18 = 24
24 + 2x = 20

Solving
24 + 2x = 20

Solving for variable 'x'.

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

Add '-24' to each side of the equation.
24 + -24 + 2x = 20 + -24

Combine like terms: 24 + -24 = 0
0 + 2x = 20 + -24
2x = 20 + -24

Combine like terms: 20 + -24 = -4
2x = -4

Divide each side by '2'.
x = -2

Simplifying
x = -2