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mixer [17]
3 years ago
15

Which is the solution to -3k-2k+12 = 2k-9?​

Mathematics
2 answers:
Lisa [10]3 years ago
8 0

Answer:

k =3

Step-by-step explanation:

-3k-2k+12 = 2k-9

-5k+12 = 2k -9

Add 5k to each side

-5k+5k+12 = 2k+5k-9

12 = 7k-9

Add 9 to each side

12 +9 = 7k-9+9

21 = 7k

Divide each side by 7

21/7 = 7k/7

3 =k

yarga [219]3 years ago
4 0

<em>answer = 3 \\ solution \\  - 3k - 2k + 12 = 2k - 9 \\ or, \:  - 3k - 2k - 2k =  - 12 - 9 \\ or, \:  - 5k - 2k =  - 21 \\ or, \:  - 7k =  - 21 \\ or, \: k =  \frac{ - 21}{ - 7}  \\ k = 3 \\ hope \: it \: helps \\ good \: luck \: on \: your \: assignment</em>

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