Question

Tìm a:

aaa + aaa + aa + a = 234

aaa - aa - aa - a  = 88

Answer 1

aaa+aaa+aa+a=234

=>a.111+a.111+a.11+a.1=234

=>a.(111+111+11+1)=234

=>a.234=234

=>a=1

aaa-aa-aa-a=88

=>a.111-a.11-a.11-a.1=88

=>a.(111-11-11-1)=88

=>a.88=88

=>a=1

Vậy a=1

Answer 2

aaa + aaa + aa + a = 234

=> a.111 + a.111 + a.11 + a = 234

=> a. ( 111 + 111 + 11 + 1 ) = 234

=> a . 234 = 234

vậy a = 1

aaa - aa - aa - a = 88

a . 111 - a .11 - a . 11 - a = 88

a . ( 111 - 11 - 11 - 1 ) = 88

a . 88 = 88

vậy a = 1

Answer 3

a = 1 đóa bn
 mk tính rùi

Answer 4

a=1

minh chac chan dung