Question

125-5 (4+x) = 15 2 mũ 6 + (5+x) = 3 mũ 4 Tìm x

Answer 1

`125-5 (4+x) = 15`

`=> 5 (4+x) = 125-15`

`=>5 (4+x) =110`

`=> 4+x=110:5`

`=> 4+x=22`

`=>x=22-4`

`=>x=18`

`-----------`

`2^6 + (5+x) = 3^4`

`=> 64+ (5+x) = 81`

`=>5+x=81-64`

`=>5+x= 17`

`=>x=17-5`

`=>x=12`

`@ ThienVy`

Answer 2

sao 2 lần =