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2(x+3)+17=59

Va rog ajutor!


Răspuns :

2x+6=59-17
2x+6=42
2x=42-6
2x=36
x=36:2
x=18
2(x+3)+17=59
2(x+3)=59-17
2(x+3)=42
x+3=42:2
x+3=21
x=21-3

x=18