Answer:
k = 7
Step-by-step explanation:
Step 1: Write equation
31 - 3k = 10
Step 2: Solve for k
- Subtract 31 on both sides: -3k = -21
- Divide both sides by -3: k = 7
Step 3: Check
Plug in k to verify it's a solution.
31 - 3(7) = 10
31 - 21 = 10
10 = 10
