Question

tìm x bt 

b,(2+x)÷5=6

c,2.x—3=11

d,2+x÷5=6

Answer 1

b,(2+x):5=6

2+x=6.5=30

x=30-2=28

c,2x-3=11

  2x=11+3=14

x=14:2=7

d,2+x:5=6

  x:5=6-2=4

  x=4.5=20

Answer 2

b) (2 + x) : 5 = 6

2 + x = 6 × 5

2 + x = 30

x = 30 - 2

x = 28

Vậy x = 28

c) 2 × x - 3 = 11

2 × x = 11 + 3

2 × x = 14

x = 14 : 2

x = 7

Vậy x = 7

d) 2 + x : 5 = 6

x : 5 = 6 - 2

x : 5 = 4

x = 4 × 5

x = 20

Vậy x = 20

Answer 3

b,(2+x):5=6

<=>2+x=6.5

<=>2+x=30

<=>x=30-2

<=>x=28

Vậy x=28

c,2x-3=11

<=>2x=11+3

<=>2x=14

<=>x=14:2

<=>x=7

Vậy x=7

d,2+x:5=6

<=>x:5=6-2

<=>x:5=4

<=>x=4.5

<=>x=20

Vậy x=20