Question

Tìm x biết

5.x+x=39-3¹¹:3⁹

Answer 1

\(5x+x=39-3^{11}:3^9\)

\(6x=39-3^{11-9}\)

\(6x=39-3^2\)

\(6x=39-9=30\)

\(x=30:6=5\)

Answer 2

5 .x + x = 39 - 3^11 : 3^9

6.x = 39 - 9

6.x = 30

x = 5

Cách mk làm nhanh hơn

Answer 3

5.x+x=39-3^11:3^9
5.x+x=39-3^11-9
5.x+x=39-3^2
5.x+x=39-9
5.x+x=30
x+x=30:5
x+x=6
chi co 3+3=6 ma x lai giong nhau nen x=3

Answer 4

5.x+x=39-3^11:3^9

5.x+x=39-3^2

5.x+x=39-9

6.x=30

  x=5