Question

x - 1 – 2 – 3 – 4 = 0

Answer 1

Ta có: x-1-2-3-4=0

\(\Leftrightarrow x=1+2+3+4\)

hay x=10

Vậy: x=10

Answer 2

x - 1 - 2 - 3 - 4 = 0

x = 1 + 2 + 3 + 4

x = 10

Vậy x = 10

Answer 3

x - 1 – 2 – 3 – 4 = 0

x = 1 + 2 + 3 + 4 

x = 10

Vậy x = 10

Chúc e hok tốt ......