Tìm x, biết
LÀM HẾT HỘ MÌNH VỚI Ạ
----- Nội dung ảnh -----
Bài 1: Tìm x, biết:
1) \(-\frac{3}{10}x = \frac{21}{10}\)
2) \(x + \frac{3}{2} = 5,6\)
3) \(x = \frac{5}{19}\)
4) \(\frac{1}{2}x - \frac{7}{9} = 0\)
5) \(\frac{1}{2} - 2x = -\left(\frac{1}{3}\right)^2\)
6) \(2x + \frac{7}{3}\)
7) \(\frac{5}{20}x = \frac{7}{9}\)
8) \(5^n + 5^{n+2} = 650\)
9) \(\sqrt{x} = 3\)
10) \(\left( \frac{x}{-1} \right)^3 = \frac{1}{27}\)
11) \(\sqrt{x - 1} = \frac{1}{2}\)
12) \(\sqrt{3 - x} = \frac{1}{2}\)
13) \(x = 3\)
14) \(\sqrt{3 - x} = -\frac{1}{2}\)
----- Nội dung ảnh -----
Bài 1: Tìm x, biết:
1) \(-\frac{3}{10}x = \frac{21}{10}\)
2) \(x + \frac{3}{2} = 5,6\)
3) \(x = \frac{5}{19}\)
4) \(\frac{1}{2}x - \frac{7}{9} = 0\)
5) \(\frac{1}{2} - 2x = -\left(\frac{1}{3}\right)^2\)
6) \(2x + \frac{7}{3}\)
7) \(\frac{5}{20}x = \frac{7}{9}\)
8) \(5^n + 5^{n+2} = 650\)
9) \(\sqrt{x} = 3\)
10) \(\left( \frac{x}{-1} \right)^3 = \frac{1}{27}\)
11) \(\sqrt{x - 1} = \frac{1}{2}\)
12) \(\sqrt{3 - x} = \frac{1}{2}\)
13) \(x = 3\)
14) \(\sqrt{3 - x} = -\frac{1}{2}\)