Question

3.

(1 pt)
What is the solution to the equation ?

k =

Answer 1

http://static.k12.com/bank_packages/files/media/mathml_7b0b099a613d538543c3c2570d274abf15a7827c_1.gif

Answer 2

i think it's 7k

Answer 3

@Nibby

Answer 4

@iGreen.

Answer 5

No, I don't' think that's right..

What's -7 * 8?

Answer 6

-56

Answer 7

@iGreen.

Answer 8

Yes, now add-56 + 10

Answer 9

@chycora

Answer 10

k -46

Answer 11

now divide -46/2 and youll get your K=

Answer 12

@chycora

Answer 13

make sense

Answer 14

(2k - 10) / -7 = 8 --- multiply both sides by -7 cancelling out the -7 on the right side
2k - 10 = -7 * 8
2k - 10 = -56
2k = -56 + 10
2k = -46
k = -46/2
k = - 23
check..
(2k - 10) / -7 = 8
(2(-23) - 10) / -7 = 8
(- 46 - 10) / -7 = 8
-56/-7 = 8
8 = 8 (correct)

so k = -23
any questions ?

Answer 15

oops..cancelling out the -7 on the left side

Answer 16

-23