Question

[linhchi tran]

11. x +3^2 . 3 = 7^5 : 7^3
cứu e vs ạ

Answer 1

[Nguyễn Việt Lâm]

\(11x+3^2.3=7^5:7^3\)

\(11x+9.3=7^2\)

\(11x+27=49\)

\(11x=49-27\)

\(11x=22\)

\(x=22:11\)

\(x=2\)

Answer 2

[Viên Tiến Duy]

x + 3^{2  .} 3= 7⁵:7³

⇔ x + 3³=7²

⇔ x + 27 = 49

⇔ x = 22