6=8(s-3.4)-20

Solution for 6=8(s-3.4)-20 equation:

Simplifying
6 = 8(s + -3.4) + -20

Reorder the terms:
6 = 8(-3.4 + s) + -20
6 = (-3.4 * 8 + s * 8) + -20
6 = (-27.2 + 8s) + -20

Reorder the terms:
6 = -27.2 + -20 + 8s

Combine like terms: -27.2 + -20 = -47.2
6 = -47.2 + 8s

Solving
6 = -47.2 + 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 = -47.2 + 8s + -8s

Combine like terms: 8s + -8s = 0
6 + -8s = -47.2 + 0
6 + -8s = -47.2

Add '-6' to each side of the equation.
6 + -6 + -8s = -47.2 + -6

Combine like terms: 6 + -6 = 0
0 + -8s = -47.2 + -6
-8s = -47.2 + -6

Combine like terms: -47.2 + -6 = -53.2
-8s = -53.2

Divide each side by '-8'.
s = 6.65

Simplifying
s = 6.65