2(2.2b-1.6+b)=6.4

Solution for 2(2.2b-1.6+b)=6.4 equation:

Simplifying
2(2.2b + -1.6 + b) = 6.4

Reorder the terms:
2(-1.6 + 2.2b + b) = 6.4

Combine like terms: 2.2b + b = 3.2b
2(-1.6 + 3.2b) = 6.4
(-1.6 * 2 + 3.2b * 2) = 6.4
(-3.2 + 6.4b) = 6.4

Solving
-3.2 + 6.4b = 6.4

Solving for variable 'b'.

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

Add '3.2' to each side of the equation.
-3.2 + 3.2 + 6.4b = 6.4 + 3.2

Combine like terms: -3.2 + 3.2 = 0.0
0.0 + 6.4b = 6.4 + 3.2
6.4b = 6.4 + 3.2

Combine like terms: 6.4 + 3.2 = 9.6
6.4b = 9.6

Divide each side by '6.4'.
b = 1.5

Simplifying
b = 1.5