Question

Please help me! I would appreciate it! :)

Answer 1

Answer:

See below.

Step-by-step explanation:

4(18-3k)=9(k+1)

72-12k=9k+9

    +12k +12k

72=21k+9

-9         -9

63=21k

/21  /21

3=k

-hope it helps

Answer 2

Answer: k= 83/21

Step-by-step explanation:

Distribute the 4 to each number/constant in the parentheses:

First multiply 4 and 18 to get 72

Then 4 and -3k to get -12 k

this gives you 72 - 12k

Same for the other side:

9(k)+9(1)= 9k+9

now that you set them them up next to eachother, 72-12k = 9k+9, combine like terms and get the numbers with the variable k on one side. To do this, you can add 12k to both sides and subtract 9 from both sides to get: 63=21k

Finally, divide both sides by 21 so you are left with k= 3