Question

[vũ thu trang]

2,Tìm x biết: \(\frac{X-10}{30}\) + \(\frac{X-14}{43}\) + \(\frac{X-5}{95}\) + \(\frac{X-148}{8}\) = 0

Answer 1

[Trần Bảo Anh]

Ta có: x-10/30 + x-14/43 + x-5/95 + x-148/8 = 0

ð  X-10/30 - 3 + x-14/43 - 2 + x-5/95 - 1 + x-148/8 + 6 = 0

ð  X-10-90/30 + x-14-86/43 + x-5-95/95 + x-148+48/8 = 0

ð  X-100/30 + X-100/43 + X-100/95 + X-100/8 = 0

ð  {X-100} . {1/30 + 1/43 + 1/95 + 1/8} = 0

Vì: /30 + 1/43 + 1/95 + 1/8 khác 0

ð  X-100 = 0

ð  X = 100

Answer 2

[Trần Bảo Anh]

ð  là dấu =>