Verified answer

Well, you cannot do anything obviously, because there is no x.

Perhaps, you meant k = -13?

= 5|-13 + 10| - |4(-13)|

= 5|-3| - |-42|

= 5(3) - 42

= 15 - 42

= -27

If you mean if k =-13.5

then you start wih -13.5+10=-3.5 absolute values are always positive so | k + 10 | =3.5

| 4k |= 54 3.5-54=-50.50