2 mo ngoac x cong 1 dong ngoac tru 1 bang 3
cac ban mo ngoac dong ngoac bang cach nao vay
mo ngoac 7x - 15 dong : 3 = 2
120-3 mo ngoac x + 15 dong = 4 . 15
HAVE ME
240 - dong ngoac vuong 23 + ( 13 + 24 .3 - x)dong ngoac vuong =132.
mo ngoac bieu thuc
(x-y)(x+y)
(-418)- mo ngoac nhon 418 -[-418-( -418+2017)] dong ngoac nhon sory nha may cua minh ko co ngoac nhon lam on giai minh giup bai toan nay nha
2345-1000:dong ngoac vuong19-2(21-18)2dong ngoac vuong
a = 17 nhân mo ngoac 1313/5151 + 1111 phần 3434 đóng ngoặc chia 177 phần 12