Answer:B
Step-by-step explanation:
6 + 2s + -8s = 18
Combine like terms: 2s + -8s = -6s
6 + -6s = 18
Solving
6 + -6s = 18
Solving for variable 's'.
Move all terms containing s to the left, all other terms to the right.
Add '-6' to each side of the equation.
6 + -6 + -6s = 18 + -6
Combine like terms: 6 + -6 = 0
0 + -6s = 18 + -6
-6s = 18 + -6
Combine like terms: 18 + -6 = 12
-6s = 12
Divide each side by '-6'.
s = -2
Simplify
s = -2