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МатематикаВопрос:
9 + 4x = 8x - 9
Ответ:
1. Subtract 4x from both sides: 9 = 4x - 9.
2. Add 9 to both sides: 18 = 4x.
3. Divide by 4: x = 18/4 = 9/2.
2. Add 9 to both sides: 18 = 4x.
3. Divide by 4: x = 18/4 = 9/2.
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