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nirvana33 [79]
3 years ago
8

-3(k+7)-5k+4=23 what is the value of K?

Mathematics
2 answers:
Goryan [66]3 years ago
5 0
Step 1: Simplify both sides of the equation.<span><span><span><span>
−<span>3<span>(<span>k+7</span>)</span></span></span>−<span>5k</span></span>+4</span>=<span>23

</span></span><span><span><span>−<span>8k</span></span>−17</span>=<span>23

</span></span>Step 2: Add 17 to both sides.<span><span><span><span>
−<span>8k</span></span>−17</span>+17</span>=<span>23+17</span></span><span><span>
−<span>8k</span></span>=40

</span><span>Step 3: Divide both sides by -8.

-8k/-8=40/-8

The answer is k= -5





Hope this helped :)
</span>

skad [1K]3 years ago
3 0
-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

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