Question

What is 28=-k+16-2k-9

Answer 1

k = -7

Explanation:

Let's put the side with the variables on the left.

-k+16-2k-9=28

Now we need to isolate the variable, which is k in this case.

>> Isolating the variable <<

Step 1: Simplify as much as you can.

-k+16-2k-9=28

-k-2k+16-9=28

-3k+7=28

Step 2: Subtract 6 from both sides

(-3k+5) -7 = 28 -7

-3k = 21

Step 3: divide both sides by -3

k = -21/3

That's your answer:

k = -7

Answer 2

In this problem, k = -7