Question

Solve for k: 31 - 3k = 10​

Answer 1

Answer:

k=-7

Step-by-step explanation:

31-3k=10

31-31=0    10-31=-21

-3k=-21     -3/3=0

-21/3=-7

k=-7

Answer 2

Answer:

k = 7

Step-by-step explanation:

Step 1: Write equation

31 - 3k = 10

Step 2: Solve for k

1. Subtract 31 on both sides: -3k = -21
2. 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