Tìm x biết:

----- Nội dung ảnh -----
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) $|x - 10|^{10} + |x - 11|^{11} = 1$