-(W+0.2)=0.3(4-w)(Y+3)

Solution for -(W+0.2)=0.3(4-w)(Y+3) equation:

Simplifying
-1(W + 0.2) = 0.3(4 + -1w)(Y + 3)

Reorder the terms:
-1(0.2 + W) = 0.3(4 + -1w)(Y + 3)
(0.2 * -1 + W * -1) = 0.3(4 + -1w)(Y + 3)
(-0.2 + -1W) = 0.3(4 + -1w)(Y + 3)

Reorder the terms:
-0.2 + -1W = 0.3(4 + -1w)(3 + Y)

Multiply (4 + -1w) * (3 + Y)
-0.2 + -1W = 0.3(4(3 + Y) + -1w * (3 + Y))
-0.2 + -1W = 0.3((3 * 4 + Y * 4) + -1w * (3 + Y))
-0.2 + -1W = 0.3((12 + 4Y) + -1w * (3 + Y))
-0.2 + -1W = 0.3(12 + 4Y + (3 * -1w + Y * -1w))
-0.2 + -1W = 0.3(12 + 4Y + (-3w + -1wY))
-0.2 + -1W = 0.3(12 + 4Y + -3w + -1wY)
-0.2 + -1W = (12 * 0.3 + 4Y * 0.3 + -3w * 0.3 + -1wY * 0.3)
-0.2 + -1W = (3.6 + 1.2Y + -0.9w + -0.3wY)

Solving
-0.2 + -1W = 3.6 + 1.2Y + -0.9w + -0.3wY

Solving for variable 'W'.

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

Add '0.2' to each side of the equation.
-0.2 + 0.2 + -1W = 3.6 + 1.2Y + -0.9w + 0.2 + -0.3wY

Combine like terms: -0.2 + 0.2 = 0.0
0.0 + -1W = 3.6 + 1.2Y + -0.9w + 0.2 + -0.3wY
-1W = 3.6 + 1.2Y + -0.9w + 0.2 + -0.3wY

Reorder the terms:
-1W = 3.6 + 0.2 + 1.2Y + -0.9w + -0.3wY

Combine like terms: 3.6 + 0.2 = 3.8
-1W = 3.8 + 1.2Y + -0.9w + -0.3wY

Divide each side by '-1'.
W = -3.8 + -1.2Y + 0.9w + 0.3wY

Simplifying
W = -3.8 + -1.2Y + 0.9w + 0.3wY