2(3+4x)-1=12

Solution for 2(3+4x)-1=12 equation:

Simplifying
2(3 + 4x) + -1 = 12
(3 * 2 + 4x * 2) + -1 = 12
(6 + 8x) + -1 = 12

Reorder the terms:
6 + -1 + 8x = 12

Combine like terms: 6 + -1 = 5
5 + 8x = 12

Solving
5 + 8x = 12

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + 8x = 12 + -5

Combine like terms: 5 + -5 = 0
0 + 8x = 12 + -5
8x = 12 + -5

Combine like terms: 12 + -5 = 7
8x = 7

Divide each side by '8'.
x = 0.875

Simplifying
x = 0.875