507,560 views
15 votes
15 votes
Find the missing variable. 3k+4(-k+2)=14k-22

User East
by
2.7k points

2 Answers

15 votes
15 votes

Explanation:

Use the Distributive Property:


3k - 4k + 8 = 14k - 22


- k + 8 = 14k - 22

Add k to both sides:


8 = 15k - 22

Add 22 to both sides:


30 = 15k

Divide each side by 15:


2 = k

User Ophir Carmi
by
3.1k points
24 votes
24 votes

Answer:

k=2

Explanation:

Expanding gives


3k-4k+8=14k-22.

Further simplification yields


-k+8=14k-22


15k=30


k=2.

User Beratuslu
by
2.9k points
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