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9 - 5k = 12 - (6k + 7) help
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9 - 5k = 12 - (6k + 7)
help

User Elias Schoof
by
5.5k points

1 Answer

4 votes

Answer:

k = 10

Explanation:

9 - 5k = 12 - (6k + 7)

open the parenthesis

9 - 5k = 12 - 6k - 7

add 6k to both sides of the equation

9 - 5k + 6k = 12 - 6k - 7 + 6k

combine like terms

9 + k = 19

subtract 9 from both sides of the equation

9 + k - 9 = 19 - 9

k = 10

User Roman Akash
by
5.2k points
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