2(2b+7)+2(1+2b)=20

Solution for 2(2b+7)+2(1+2b)=20 equation:

Simplifying
2(2b + 7) + 2(1 + 2b) = 20

Reorder the terms:
2(7 + 2b) + 2(1 + 2b) = 20
(7 * 2 + 2b * 2) + 2(1 + 2b) = 20
(14 + 4b) + 2(1 + 2b) = 20
14 + 4b + (1 * 2 + 2b * 2) = 20
14 + 4b + (2 + 4b) = 20

Reorder the terms:
14 + 2 + 4b + 4b = 20

Combine like terms: 14 + 2 = 16
16 + 4b + 4b = 20

Combine like terms: 4b + 4b = 8b
16 + 8b = 20

Solving
16 + 8b = 20

Solving for variable 'b'.

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

Add '-16' to each side of the equation.
16 + -16 + 8b = 20 + -16

Combine like terms: 16 + -16 = 0
0 + 8b = 20 + -16
8b = 20 + -16

Combine like terms: 20 + -16 = 4
8b = 4

Divide each side by '8'.
b = 0.5

Simplifying
b = 0.5