3.6=s-3.9

Solution for 3.6=s-3.9 equation:

Simplifying
3.6 = s + -3.9

Reorder the terms:
3.6 = -3.9 + s

Solving
3.6 = -3.9 + s

Solving for variable 's'.

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

Add '-1s' to each side of the equation.
3.6 + -1s = -3.9 + s + -1s

Combine like terms: s + -1s = 0
3.6 + -1s = -3.9 + 0
3.6 + -1s = -3.9

Add '-3.6' to each side of the equation.
3.6 + -3.6 + -1s = -3.9 + -3.6

Combine like terms: 3.6 + -3.6 = 0.0
0.0 + -1s = -3.9 + -3.6
-1s = -3.9 + -3.6

Combine like terms: -3.9 + -3.6 = -7.5
-1s = -7.5

Divide each side by '-1'.
s = 7.5

Simplifying
s = 7.5