2(y+0.8)=3.9

Solution for 2(y+0.8)=3.9 equation:

Simplifying
2(y + 0.8) = 3.9

Reorder the terms:
2(0.8 + y) = 3.9
(0.8 * 2 + y * 2) = 3.9
(1.6 + 2y) = 3.9

Solving
1.6 + 2y = 3.9

Solving for variable 'y'.

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

Add '-1.6' to each side of the equation.
1.6 + -1.6 + 2y = 3.9 + -1.6

Combine like terms: 1.6 + -1.6 = 0.0
0.0 + 2y = 3.9 + -1.6
2y = 3.9 + -1.6

Combine like terms: 3.9 + -1.6 = 2.3
2y = 2.3

Divide each side by '2'.
y = 1.15

Simplifying
y = 1.15