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Sagot :
Answer:
x = - 7 (C)
Step-by-step explanation:
=> x + x + 1 + 1 + 1 = x - 1 - 1 - 1 - 1
=> 2x + 3 = x - 4
=> 2x - x = - 4 - 3
- x = - 7 ✔
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