Răspuns :
3x+8y=48
⇔3*8+8y=48
⇔24+8y=48
⇔8y=48-24
⇔8y=24
⇔y=24:8
⇔y=3
sau
3x+8y=48
⇔3*0+8y=48
⇔0+8y=48
⇔8y=48
⇔y=48:8
⇔y=6
⇔3*8+8y=48
⇔24+8y=48
⇔8y=48-24
⇔8y=24
⇔y=24:8
⇔y=3
sau
3x+8y=48
⇔3*0+8y=48
⇔0+8y=48
⇔8y=48
⇔y=48:8
⇔y=6