2w+2(6+2w)=90

Solution for 2w+2(6+2w)=90 equation:

Simplifying
2w + 2(6 + 2w) = 90
2w + (6 * 2 + 2w * 2) = 90
2w + (12 + 4w) = 90

Reorder the terms:
12 + 2w + 4w = 90

Combine like terms: 2w + 4w = 6w
12 + 6w = 90

Solving
12 + 6w = 90

Solving for variable 'w'.

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

Add '-12' to each side of the equation.
12 + -12 + 6w = 90 + -12

Combine like terms: 12 + -12 = 0
0 + 6w = 90 + -12
6w = 90 + -12

Combine like terms: 90 + -12 = 78
6w = 78

Divide each side by '6'.
w = 13

Simplifying
w = 13