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a fost răspuns

2supra7=48supra2z+4
Pls

Răspuns :

Tonitoni150
2(2z+4)=48•7
4z+8=336
4z=336-8
4z=328=>z=328/4
=>z=82
Ignatovvlad201
2/7=24/z+4
2/7=24/z+4,z≠0
2=7(24/z+4)
2=7×/24+4z/z
2=/7(24+4z/z
2=/168+28z/z
2z=168+28z
2z-28z=168
-26z=168
z=-168/26
z=-84/13,z≠0
z=-84/13.

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