Question

a+ a+1+a+2 = 24

Answer 1

a+ a+1+a+2 = 24

<=>a+a+a=24-1-2

<=>3a=21

<=>a=21:3=7

vậy a=7

k mk nha bạn

Answer 2

a + a + 1 + a + 2 = 24 

                3a + 3 = 24

                      3a = 24 - 3 

                       3a = 21

                         a = 7

Answer 3

a+ a+1+a+2 = 24

=> (a+a+a)+(1+2)=24

=> 3a = 24 - 3

=> 3a = 21

=> a = 7

Answer 4

          a+ a+ 1+ a+ 2 = 24

          3a+ 3 = 24

          3a = 21

             a = 7

           Đ/s: a = 7

           

       

Answer 5

Ta có: a + a + 1 + a + 2 = 24

=> a + a + a = 24 - ( 1 + 2)

=>   3a         = 24 - 3

=>   3a          = 21

=>    a            = 21 : 3

=>    a             = 7

Answer 6

a+a+1+a+2=24

a x 3 +1+1=24

ax3+3=24

ax3=24-3

ax3=21

a=21:3

a=7

Answer 7

a+a+1+a+2=24

3a+1+2=24

3a+3=24

3a=21

a=7

Các bạn ủng hộ mik nha

Answer 8

a+a+1+a+2=24

a3+1+2=24

a3+3=24

a3=24-3

a.3=21

a=21;3

a=7

Answer 9

a+ a+1+a+2 = 24

=> (a+a+a)+(1+2)=24

=> 3a = 24 - 3

=> 3a = 21

=> a = 7