Queenquestion5967
21.12.2020 •
Mathematics
Solve the inequality please- 21 ≥ 3(a- 7) +9 Thank you so much
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Ответ:
Step-by-step explanation:
- 21 ≥ 3(a - 7) + 9- 21 ≥ 3a - 21 + 9+21 +21
0 ≥ 3a + 9 3a + 9 ≤ 0-9 -9
3a ≤ - 9÷3 ÷3
a ≤ -3 a ∈ (-∞, -3>Ответ:
4
Step-by-step explanation:
i think its 4