100-7×6-2x( 19-y×3)=956, y=?

Răspuns :

raspuns:

y=164

Explicație pas cu pas:

100-42-2×(19-y×3)=956

42-2×(19-y×3)=956+100

42-2×(19-y×3)=1056

2×(19-y×3)=1098

19-y×3=549

19-y=183

y=164