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VAROOOOOOG 9+2(14-y)=15 URGEEENTTTT

Răspuns :

9+2(14-y)=15
9+28-2y= 15
37-2y=15
37-15=2y
22=2y
⇒ y= 22/2
⇒y=11
sper ca te-am ajutat :*
2(14-y)=15-9
2(14-y)=6
14-y=6:2
14-y=3
y=14-3
y=11
S={11}
verificare: 9+2(14-11)=15