Question

78 nhân 2 : x = 39

Answer 1

\(78\times2\div x=39\)

\(\Leftrightarrow156\div x=39\)

\(\Leftrightarrow x=4\)

Answer 2

x=4 nha

Answer 3

x=4 nha

Answer 4

78 x 2 : x = 39

156 : x = 39

x = 156 : 39

x = 4 

vậy x = 4

Answer 5

78x2:X=39 156 :X=39 X=156:39 X=4