Question

[Bảo Ngọc]

Tìm x biết:x+x+x*1+x*6=120

Giups mik với mik đang cần gấp

Answer 1

[ILoveMath]

\(x+x+x\times1+x\times6=120\\ x\times\left(1+1+1+6\right)=120\\ x\times9=120\\ x=\dfrac{120}{9}\\ x=\dfrac{40}{3}\)

Answer 2

[Tô Mì]

\(x+x+x\text{×}1+x\text{×}6=120\)

\(x\text{×}\left(1+1+1\right)+x\text{×}6=120\)

\(x\text{×}3+x\text{×}6=120\)

\(x\text{×}\left(3+6\right)=120\)

\(x\text{×}9=120\)

\(x=\dfrac{120}{9}\)