Question

Tìm x:

2010+x+x-x-x-...-x=1920(có 10 chữ số x)

Answer 1

=>  2010 + 2x - 8x = 1920

=> -6x = 1920- 2010

=> -6x = -90

=> x = \(\frac{-90}{-6}=\frac{90}{6}=15\)

Vậy x =15

Answer 2

=> 2010 + 2x - 8x = 1920

=> -6x = 1920 - 2010

=> -6x = -90

=> x = \(\frac{-90}{-6}=\frac{90}{6}=15\)

Vậy x = 15