Question

x + x + x + x + x + x = -126

Answer 1

6x=-126

=>x=-21

Answer 2

\(x+x+x+x+x+x=-126\\ \Rightarrow6x=-126\\ \Rightarrow x=\left(-126\right):6=-21\)

vậy x = -21

Answer 3

x + x + x + x + x + x = -126

⇔ 6x = -126

⇔ x = -126 : 6

⇔ x = -21