- 21
- 22
- 24
- 25
Correct answer is B
6x+k2x2+7x−15=4x+5−22x−3
6x + k = 4 (2x - 3) - 2(x + 5)
6x + k = 8x - 12 - 2x - 10
6x + k = 6x - 22
k = - 22
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