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*Peytie Jae* ♫
Guest
equasion: (-2)^3(-k - I-3I) - (-2) - 2k = k - 3^2
what i have: (-8) (-k - 3) + 2 - 2k = k - 9
8k - 24 + 2 - 2k = k - 9
6k - 22 = k - 9
6k = k + 13
5k/5 = 13/5
= 2.5
i've done this question at least 6 times and got the answers 5 or -5 and now 2.5, but the answer is -7. could you show me what i did wrong please? thanks
what i have: (-8) (-k - 3) + 2 - 2k = k - 9
8k - 24 + 2 - 2k = k - 9
6k - 22 = k - 9
6k = k + 13
5k/5 = 13/5
= 2.5
i've done this question at least 6 times and got the answers 5 or -5 and now 2.5, but the answer is -7. could you show me what i did wrong please? thanks