-2 (-7k + 4) + 9 = -13

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asked Dec 2, 2018 4.8k views

2 Answers

Justan · Answer 1 · 2018-12-03T12:35:28+0000

The answer is -1.

-2(-7k + 4) = -13 - 9

-2(-7k + 4) = -22

-7k + 4 = -22/2

-7k + 4 = 22/2

-7k + 4 = 11

-7k = 11 - 4

-7k = 7

k = -1.

Dusky · Answer 2 · 2018-12-07T13:16:57+0000

-2 (-7k + 4) + 9 = -13
Use distributive property
14k - 8 + 9 = -13
Add 8 to both sides
14k + 9= -5
Subtract 9 from both sides
14k= -14
Divide 14 on both sides
Final Answer: k= -1

-2 (-7k + 4) + 9 = -13

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