Question

X x 20-11 x X =972

 

Answer 1

X x 20 - 11 x X = 972

X x ( 20 - 11 ) = 972

X x 9 = 972

X = 972 : 9

X = 108

Answer 2

x.20-11.x=972

=x.(20-11)=972

=x.9=972

=x=972:9

=x=108

Vậy x=108

Answer 3

X x ( 20 - 11 ) = 972

X x 9             = 972

X                   = 972 : 9

X                   = 108