melanieballadares02 melanieballadares02
  • 24-09-2020
  • Mathematics
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2 (k - 3) + 21 = -3 solve for K

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Аноним Аноним
  • 24-09-2020

Answer:  

2(k-3)+21=-3

We move all terms to the left:

2(k-3)+21-(-3)=0

We add all the numbers together, and all the variables

2(k-3)+24=0

We multiply parentheses

2k-6+24=0

We add all the numbers together, and all the variables

2k+18=0

We move all terms containing k to the left, all other terms to the right

2k=-18

k=-18/2

k=-9

Hope this helped :)

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