If 2k - 3 = 9 (k+7)-3 then k is ????

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Ljm Dullaart asked Sep 8, 2022

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9 votes

If 2k - 3 = 9 (k+7)-3 then k is ????

Mathematics
high-school

Ljm Dullaart asked Sep 8, 2022

by Ljm Dullaart

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16 votes

Answer:

K = -9

Explanation:

2k-3 = 9(k+7)-3

2k-3 = 9k+63-3

2k-3 = 9k+60

2k-9k = 60+3

-7k = 63

-k = 9

k = -9

Gmcnaughton answered Sep 11, 2022

by Gmcnaughton

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17 votes

Answer:

k= -9

Explanation:

2k-3=9k+63-3 [expand the 9(k+7) first]

2k-9k=63-3+3 [put the like terms together]

-7k=63 [do the simple math]

k= 63 ÷ by -7

k=-9

Bmhkim answered Sep 14, 2022

by Bmhkim

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