tinahayes
tinahayes
26-01-2017
Mathematics
contestada
-3(k+7)-5k+4=23 what is the value of K?
Respuesta :
jodeelhyn
jodeelhyn
26-01-2017
-3(k+7)-5k+4=23
-3k-21-5k+4=23
Get rid of the numbers that aren't being multiplied by k:
-3k-5k=23+21-4
Add like things:
-8k=40
Divide by -8 on both sides to get k by itself and to make the equation even:
k=-5
Answer Link
mattheman1812
mattheman1812
26-01-2017
Step 1: Simplify both sides of the equation.
−
3
(
k+7
)
−
5k
+4
=
23
−
8k
−17
=
23
Step 2: Add 17 to both sides.
−
8k
−17
+17
=
23+17
−
8k
=40
Step 3: Divide both sides by -8.
-8k/-8=40/-8
The answer is k= -5
Hope this helped :)
Answer Link
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