.4(2s-4)=4.8

Solution for .4(2s-4)=4.8 equation:

Simplifying
0.4(2s + -4) = 4.8

Reorder the terms:
0.4(-4 + 2s) = 4.8
(-4 * 0.4 + 2s * 0.4) = 4.8
(-1.6 + 0.8s) = 4.8

Solving
-1.6 + 0.8s = 4.8

Solving for variable 's'.

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

Add '1.6' to each side of the equation.
-1.6 + 1.6 + 0.8s = 4.8 + 1.6

Combine like terms: -1.6 + 1.6 = 0.0
0.0 + 0.8s = 4.8 + 1.6
0.8s = 4.8 + 1.6

Combine like terms: 4.8 + 1.6 = 6.4
0.8s = 6.4

Divide each side by '0.8'.
s = 8

Simplifying
s = 8