Tìm x biết \( 50x - 60 = 0 \)
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Bài 10: Tìm x, biết
a) \( 50x - 60 = 0 \)
b) \( 4 - 3x = 5 \)
c) \( 15 - 4x = x - 5 \)
d) \( 3(x - 2) - (2x - 4) = x + 1 \)
e) \( x - 3(2 - x) = 2x - 4 \)
f) \( 3x^2 - 7x + 4 = 0 \)
g) \( (x + 7)(3x - 1) = 49 - x^2 \)
h) \( \frac{7x - 1}{6} - \frac{16 - x}{5} = -2x \)
i) \( k(x + 3)^2 - 13 = k(x + 4) \)
j) \( k(x + 3) - 4 = (x - 2)^2 \)
k) \( \frac{x - 4}{3x + 2} = \frac{2021}{2022} \)
l) \( \frac{x - 2}{3x + 1} = 2x + \frac{5}{2024} \)
m) \( \frac{3}{4 + x + 3} = \frac{6x - 7}{3 + 5} + 3 \)