2(w+2.8)+2w=77.6

Solution for 2(w+2.8)+2w=77.6 equation:

Simplifying
2(w + 2.8) + 2w = 77.6

Reorder the terms:
2(2.8 + w) + 2w = 77.6
(2.8 * 2 + w * 2) + 2w = 77.6
(5.6 + 2w) + 2w = 77.6

Combine like terms: 2w + 2w = 4w
5.6 + 4w = 77.6

Solving
5.6 + 4w = 77.6

Solving for variable 'w'.

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

Add '-5.6' to each side of the equation.
5.6 + -5.6 + 4w = 77.6 + -5.6

Combine like terms: 5.6 + -5.6 = 0.0
0.0 + 4w = 77.6 + -5.6
4w = 77.6 + -5.6

Combine like terms: 77.6 + -5.6 = 72
4w = 72

Divide each side by '4'.
w = 18

Simplifying
w = 18