6+3(2x+1)=12

Solution for 6+3(2x+1)=12 equation:

Simplifying
6 + 3(2x + 1) = 12

Reorder the terms:
6 + 3(1 + 2x) = 12
6 + (1 * 3 + 2x * 3) = 12
6 + (3 + 6x) = 12

Combine like terms: 6 + 3 = 9
9 + 6x = 12

Solving
9 + 6x = 12

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 6x = 12 + -9

Combine like terms: 9 + -9 = 0
0 + 6x = 12 + -9
6x = 12 + -9

Combine like terms: 12 + -9 = 3
6x = 3

Divide each side by '6'.
x = 0.5

Simplifying
x = 0.5