Răspuns :
a).6x+10=46
x=46-10
6x=36x=36/6=6
b).15-x=9 c).2x-31=5-x=9-15 2x=5+31=36⇒x=36/2=18
-x=-6
x=6
x=46-10
6x=36x=36/6=6
b).15-x=9 c).2x-31=5-x=9-15 2x=5+31=36⇒x=36/2=18
-x=-6
x=6