6=8(s-3.75)-20

Solution for 6=8(s-3.75)-20 equation:

Simplifying
6 = 8(s + -3.75) + -20

Reorder the terms:
6 = 8(-3.75 + s) + -20
6 = (-3.75 * 8 + s * 8) + -20
6 = (-30 + 8s) + -20

Reorder the terms:
6 = -30 + -20 + 8s

Combine like terms: -30 + -20 = -50
6 = -50 + 8s

Solving
6 = -50 + 8s

Solving for variable 's'.

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

Add '-8s' to each side of the equation.
6 + -8s = -50 + 8s + -8s

Combine like terms: 8s + -8s = 0
6 + -8s = -50 + 0
6 + -8s = -50

Add '-6' to each side of the equation.
6 + -6 + -8s = -50 + -6

Combine like terms: 6 + -6 = 0
0 + -8s = -50 + -6
-8s = -50 + -6

Combine like terms: -50 + -6 = -56
-8s = -56

Divide each side by '-8'.
s = 7

Simplifying
s = 7