Question

Solve for k.

3(k – 10) = 9

Answer 1

first distribute:
3(k-10)=9
3k-30=9
now add 30 to both sides:
3k-30+30=9+30
3k=39
now divide both sides by 3:
3k/3=39/3
k=39/3???

Answer 2

you can first divide each side by 3
isolate the term with k to one side
simplify

Answer 3

yeah there are 2 methods

Answer 4

it would be:
3*(k-10)=9
3*(k-10)/3=9*3
k-10=3
add 10:
k-10+10=3+10
k=3+10=simplify

Answer 5

Divide each side by 3
k-10 = 3
Move -10 to the RHS and simplify.
k = 13

Answer 6

Try mathway.com it help you with anything trust me type in your equation and it gives you the right answer!

Answer 7

Thank you! That helped! ;)