Question

1/2⋅2N+4⋅2N=9⋅5N

Answer 1

giúp mik vs

Answer 2

\(\dfrac{1}{2}\times2N+4\times2N=9\times5N\\ N+8N=45N\\ 9N=45N\\ 45N-9N=0\\ 36N=0\\ N=0\)

Vậy: ... 

Answer 3

`1/2 . 2N+4 . 2N=9 . 5N`

`=> N + 8N = 45N`

`=> 9N = 45N`

`=> 45N - 9N = 0`

`=> N(45- 9) = 0`

`=> N . 36 = 0`

`=> N = 0 : 36`

`=> N = 0`

Vậy `N= 0`