Răspuns :
(a+17,34)×3,5+11,56=
=249,5
(a+17,34)×3,5=249,5-
-11,5
(a+17,34)×3,5=238
a+17,34=238:3,5
a+17,34=68
a=68-17,34
a=50,66
=249,5
(a+17,34)×3,5=249,5-
-11,5
(a+17,34)×3,5=238
a+17,34=238:3,5
a+17,34=68
a=68-17,34
a=50,66