Question

tim x:

x.67+x.33=1290

Answer 1

x.(67+33)=1290

x.100=1290

      x=1290:100

      x=12,9

Answer 2

x.67 + x.33 = 1290

x( 67 + 33 ) = 1290

x.100          = 1290

x                = 1290 : 100

x                = 12,9

Answer 3

minh viet lai cau hoi

x 67 +33=1290

x=1290:100

x=129

Answer 4

x . 67 + x . 33 = 1290

x . ( 67 + 33 ) = 1290

x . 100 = 1290

x = 1290 : 100

x = 12,9