2(w-3)-4w=-20

Solution for 2(w-3)-4w=-20 equation:

Simplifying
2(w + -3) + -4w = -20

Reorder the terms:
2(-3 + w) + -4w = -20
(-3 * 2 + w * 2) + -4w = -20
(-6 + 2w) + -4w = -20

Combine like terms: 2w + -4w = -2w
-6 + -2w = -20

Solving
-6 + -2w = -20

Solving for variable 'w'.

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

Add '6' to each side of the equation.
-6 + 6 + -2w = -20 + 6

Combine like terms: -6 + 6 = 0
0 + -2w = -20 + 6
-2w = -20 + 6

Combine like terms: -20 + 6 = -14
-2w = -14

Divide each side by '-2'.
w = 7

Simplifying
w = 7