Question

Tìm X a) X : 308 = 509   b) X + 354 = 860 – 45

Answer 1

a.\(x:308=509\)
\(x=509x308=156772\)
b.\(x+354=860-45\)
\(x+354=815\)
\(x=415-354=61\)

Answer 2

a, x = 509 x 308 = 156772

b, x + 354 = 815

x = 815 - 354 = 461

Answer 3

a) X : 308 = 509

           X=509x 308

           X=156772

  b) X + 354 = 860 – 45

     X + 345 = 815

             X= 815-345 

             X=461