Question

How to find the value of the K variable?

Answer 1

-1=2k+5/-4-k

Answer 2

\[-1=\frac{2k+5}{-4-k}\] multiply both sides by \(-4-k\) and solve
\[k+4=2k+5\]you good from there?

Answer 3

you can almost do it in your head
subtract \(k\) and get \[4=k+5\] then subtract \(5\)

Answer 4

Okay then k is -1?

Answer 5

I don't know i i did the last one right. its -2+-3-7/2-k and i got k=-5. Am i right?

Answer 6

yeah it is \(k=-1\) and you can check that it works

Answer 7

I mean -2=-3-7/2-k

Answer 8

is the numerator really \(-3-7\)?

Answer 9

yes

Answer 10

i.e. \(-10\)

Answer 11

can you explain it?

Answer 12

so
\[-2=\frac{-10}{2-k}\] or
\[-2(2-k)=-10\] then
\[-4+2k=-10\]

Answer 13

add 4 to both sides and get \(2k=-6\) and so \(k=-3\)

Answer 14

i take it we were solving
\[-2=\frac{-3-7}{2-k}\] with no \(k\) up top, right?

Answer 15

yes

Answer 16

ok did you get all the steps? or would you like me to rewrite them?

Answer 17

I got it! Thanks!

Answer 18

yw