((1-y)*2)+(y*.5)=1.25

Solution for ((1-y)*2)+(y*.5)=1.25 equation:

Simplifying
((1 + -1y) * 2) + (y * 0.5) = 1.25

Reorder the terms for easier multiplication:
(2(1 + -1y)) + (y * 0.5) = 1.25
((1 * 2 + -1y * 2)) + (y * 0.5) = 1.25
((2 + -2y)) + (y * 0.5) = 1.25
(2 + -2y) + (y * 0.5) = 1.25

Remove parenthesis around (2 + -2y)
2 + -2y + (y * 0.5) = 1.25

Reorder the terms for easier multiplication:
2 + -2y + (0.5y) = 1.25

Combine like terms: -2y + (0.5y) = -1.5y
2 + -1.5y = 1.25

Solving
2 + -1.5y = 1.25

Solving for variable 'y'.

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

Add '-2' to each side of the equation.
2 + -2 + -1.5y = 1.25 + -2

Combine like terms: 2 + -2 = 0
0 + -1.5y = 1.25 + -2
-1.5y = 1.25 + -2

Combine like terms: 1.25 + -2 = -0.75
-1.5y = -0.75

Divide each side by '-1.5'.
y = 0.5

Simplifying
y = 0.5