–3 = –2(s − 9) + –1

Sure, let's solve the equation step by step.

Given: –3 = –2(s − 9) + –1

Step 1: Distribute the –2 on the right side of the equation. –3 = –2s + 18 + –1

Step 2: Combine like terms on the right side. –3 = –2s + 17

Step 3: Isolate the term with the variable by subtracting 17 from both sides. –3 – 17 = –2s –20 = –2s

Step 4: Solve for s by dividing both sides by –2. s = –20 / –2 s = 10

So, the solution is: s = 10