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-3(k+7)-5k+4=23 what is the value of K?
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Jan 24, 2018
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-3(k+7)-5k+4=23 what is the value of K?
Mathematics
high-school
Gioia
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-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
Thibaud Clement
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Jan 26, 2018
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Thibaud Clement
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6
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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 :)
Apprentice
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Jan 28, 2018
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Apprentice
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