0.4(y-3)=0.8

Solution for 0.4(y-3)=0.8 equation:

Simplifying
0.4(y + -3) = 0.8

Reorder the terms:
0.4(-3 + y) = 0.8
(-3 * 0.4 + y * 0.4) = 0.8
(-1.2 + 0.4y) = 0.8

Solving
-1.2 + 0.4y = 0.8

Solving for variable 'y'.

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

Add '1.2' to each side of the equation.
-1.2 + 1.2 + 0.4y = 0.8 + 1.2

Combine like terms: -1.2 + 1.2 = 0.0
0.0 + 0.4y = 0.8 + 1.2
0.4y = 0.8 + 1.2

Combine like terms: 0.8 + 1.2 = 2
0.4y = 2

Divide each side by '0.4'.
y = 5

Simplifying
y = 5