Tìm x biết:
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Tìm x biết:
1) \( \left( 3 - \frac{9}{10} - |x+2| \right) : \left( \frac{19}{10} - 1 - \frac{2}{5} + \frac{4}{5} \right) = 1 \)
2) \( |x+15| - 4 = 2021. \)
3) \( |x+1| + |x+3| + |x+5| = 4x \)
4) \( |x| + |x+2| + |x+4| + \ldots + |x+2020| = 2021x \)
5) \( |x+1| + |x+2| + |x+3| + \ldots + |x+10| = 15x \)
6) \( |x + 2| = |2012x^2 + 4024x| \)
7) \( |x-3| = |2x+1| \)
8) \( |x| + |x + 2| = 3 \)
9) \( |x-2| + |3-2x| = 2x + 1 \)
10) \( |x - 10|^{10} + |x - 11|^{11} = 1 \)
Tìm x biết:
1) \( \left( 3 - \frac{9}{10} - |x+2| \right) : \left( \frac{19}{10} - 1 - \frac{2}{5} + \frac{4}{5} \right) = 1 \)
2) \( |x+15| - 4 = 2021. \)
3) \( |x+1| + |x+3| + |x+5| = 4x \)
4) \( |x| + |x+2| + |x+4| + \ldots + |x+2020| = 2021x \)
5) \( |x+1| + |x+2| + |x+3| + \ldots + |x+10| = 15x \)
6) \( |x + 2| = |2012x^2 + 4024x| \)
7) \( |x-3| = |2x+1| \)
8) \( |x| + |x + 2| = 3 \)
9) \( |x-2| + |3-2x| = 2x + 1 \)
10) \( |x - 10|^{10} + |x - 11|^{11} = 1 \)