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

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

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

Combine like terms: (2w) + (2w) = 4w
90 = 6 + 4w

Solving
90 = 6 + 4w

Solving for variable 'w'.

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

Add '-4w' to each side of the equation.
90 + -4w = 6 + 4w + -4w

Combine like terms: 4w + -4w = 0
90 + -4w = 6 + 0
90 + -4w = 6

Add '-90' to each side of the equation.
90 + -90 + -4w = 6 + -90

Combine like terms: 90 + -90 = 0
0 + -4w = 6 + -90
-4w = 6 + -90

Combine like terms: 6 + -90 = -84
-4w = -84

Divide each side by '-4'.
w = 21

Simplifying
w = 21