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Cat Face : 2(4x-5)=2x+10 Merci!!!

Răspuns :

2(4x-5)=2x+10⇒8x-10=2x-10⇒8x-2x=10-10=6x
2(4x-5)=2x+10
8x-10=2x+10
8x-2x=10+10
6x=20
x=20/6
x=10/3